From febf98e2730248643e810842a8a7950f074ccc7d Mon Sep 17 00:00:00 2001
From: igneum-labs <337424239+igneum-labs@users.noreply.github.com>
Date: Wed, 7 Oct 2026 20:36:54 +0000
Subject: [PATCH] Program id derivation: every pack's program.json states its
 own recipe (the record maker print_every_pack_derivation, ignored in the
 suite, rebuilds each pack as the pack tests do); the twelve readwidth mix
 packs keep their text (a class name the parser no longer accepts)

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
---
 igneum-pow/tests/derivation.rs                | 39 +++++++++++++++++++
 proto-cuda/packs-ca2-hot/hot32k4/program.json |  2 +-
 .../packs-ca2-hot/hot32k4a/program.json       |  2 +-
 proto-cuda/packs-ca2-hot/hot64k2/program.json |  2 +-
 proto-cuda/packs-ca2-hot/hot64k4/program.json |  2 +-
 .../packs-ca2-hot/hot64k4a/program.json       |  2 +-
 proto-cuda/packs-ca2-hot/hot64k8/program.json |  2 +-
 proto-cuda/packs-ca2-hot/hot96k4/program.json |  2 +-
 .../packs-ca2-hot/hot96k4a/program.json       |  2 +-
 .../mx4-devnet-epoch0/program.json            |  2 +-
 .../packs-ca2-mixer/mx4-genesis/program.json  |  2 +-
 .../dr736-devnet-epoch0/program.json          |  2 +-
 .../dr736-genesis/program.json                |  2 +-
 .../packs-readwidth/scr0k32/program.json      |  2 +-
 .../packs-readwidth/scr2k128/program.json     |  2 +-
 .../packs-readwidth/scr2k32/program.json      |  2 +-
 .../packs-readwidth/scr4k128/program.json     |  2 +-
 .../packs-readwidth/scr4k32/program.json      |  2 +-
 .../packs-readwidth/scr8k128/program.json     |  2 +-
 .../packs-readwidth/scr8k32/program.json      |  2 +-
 proto-cuda/packs-readwidth/w16/program.json   |  2 +-
 proto-cuda/packs-readwidth/w64/program.json   |  2 +-
 proto-cuda/packs-readwidth/w64x4/program.json |  2 +-
 23 files changed, 61 insertions(+), 22 deletions(-)

diff --git a/igneum-pow/tests/derivation.rs b/igneum-pow/tests/derivation.rs
index 90939bdf..71db0805 100644
--- a/igneum-pow/tests/derivation.rs
+++ b/igneum-pow/tests/derivation.rs
@@ -101,3 +101,42 @@ fn the_class_v4_derivation_states_the_suffix_and_the_plain_text_derives_another_
     assert_ne!(fnv1a64(&b), hex64(&j["program_id"]), "the plain text must not derive the pinned id (it did before the fix)");
     assert_eq!(hex64(&j["program_id"]), 0xa785_0016_87d8_688a);
 }
+
+/// The record maker (ignored in the suite): prints `DERIVATION <dir> <id> <text>` for every pack directory under proto-cuda,
+/// the program rebuilt as the pack tests rebuild it (generator 3 with era bytes under class v2's era layout for packs-ca2-era,
+/// generator 3 through the v3 seam otherwise, generator 2 with its load class, plain generator 2), so program.json's line can
+/// be set from the code's own recipe after a derivation change. `cargo test --release --test derivation -- --ignored --nocapture`.
+#[test]
+#[ignore]
+fn print_every_pack_derivation() {
+    use igneum_pow::generator::{generate_era, generate_from_seed_bytes, generate_from_seed_bytes_class, generate_from_seed_bytes_program_class, ProgramClass, GENERATOR_VERSION_V3};
+    let root = PathBuf::from(env!("CARGO_MANIFEST_DIR")).join("../proto-cuda");
+    let mut dirs: Vec<PathBuf> = std::fs::read_dir(&root).unwrap().map(|e| e.unwrap().path()).filter(|p| p.file_name().unwrap().to_str().unwrap().starts_with("packs")).flat_map(|g| std::fs::read_dir(g).unwrap().map(|e| e.unwrap().path())).filter(|p| p.join("program.json").is_file()).collect();
+    dirs.sort();
+    for dir in dirs {
+        let j: Value = serde_json::from_str(&std::fs::read_to_string(dir.join("program.json")).unwrap()).unwrap();
+        let seed = j["seed"].as_str().unwrap();
+        let seed_bytes = igneum_pow::bind::unhex(j["seed_bytes"].as_str().unwrap()).unwrap();
+        let gen = j["generator"].as_u64().unwrap() as u32;
+        let era = j.get("era_seed_bytes").and_then(|v| v.as_str()).map(|h| igneum_pow::bind::unhex(h).unwrap());
+        let lc = j.get("load_class").and_then(|c| c.as_str());
+        let program = if gen == GENERATOR_VERSION_V3 && dir.parent().unwrap().file_name().unwrap() == "packs-ca2-era" {
+            let allowed: Vec<u8> = j["era"]["allowed_widths"].as_array().unwrap().iter().map(|v| v.as_u64().unwrap() as u8).collect();
+            generate_era(seed, &seed_bytes, LoadClass::V2, era.as_deref().unwrap(), &allowed)
+        } else if gen == GENERATOR_VERSION_V3 {
+            generate_from_seed_bytes_program_class(seed, &seed_bytes, ProgramClass::V3, era.as_deref())
+        } else if gen == 4 {
+            generate_from_seed_bytes_program_class(seed, &seed_bytes, ProgramClass::V4, era.as_deref())
+        } else if let Some(c) = lc {
+            let Some(class) = LoadClass::parse(c) else {
+                println!("SKIP {} load_class {c:?} is a name the parser no longer accepts (an old experiment's pack); its derivation line stands as written", dir.strip_prefix(&root).unwrap().display());
+                continue;
+            };
+            generate_from_seed_bytes_class(seed, &seed_bytes, class)
+        } else {
+            generate_from_seed_bytes(seed, &seed_bytes)
+        };
+        println!("DERIVATION {} {:016x} {}", dir.strip_prefix(&root).unwrap().display(), program.program_id(), program.program_id_derivation());
+        assert_eq!(program.program_id(), hex64(&j["program_id"]), "{}: the rebuilt program's id is the pack's", dir.display());
+    }
+}
diff --git a/proto-cuda/packs-ca2-hot/hot32k4/program.json b/proto-cuda/packs-ca2-hot/hot32k4/program.json
index 6521857a..7c730e66 100644
--- a/proto-cuda/packs-ca2-hot/hot32k4/program.json
+++ b/proto-cuda/packs-ca2-hot/hot32k4/program.json
@@ -3,7 +3,7 @@
   "generator": 2,
   "attempt": 0,
   "program_id": "0x3370a4466e5f322c",
-  "program_id_derivation": "FNV-1a 64 over 'igneum-program/' || generator_le32 || seed_words as little-endian bytes || attempt_le32",
+  "program_id_derivation": "FNV-1a 64 over 'igneum-program-rw/' || generator_le32 || seed_words as little-endian bytes || attempt_le32 || mix[3] || load_slots_u8 || 'hot/' || hot_mb_u8 || hot_k_u8",
   "dataset_mode": "memory-hard",
   "seed": "igneum-genesis",
   "seed_bytes": "69676e65756d2d67656e65736973",
diff --git a/proto-cuda/packs-ca2-hot/hot32k4a/program.json b/proto-cuda/packs-ca2-hot/hot32k4a/program.json
index 0d46fc05..557b4bec 100644
--- a/proto-cuda/packs-ca2-hot/hot32k4a/program.json
+++ b/proto-cuda/packs-ca2-hot/hot32k4a/program.json
@@ -3,7 +3,7 @@
   "generator": 2,
   "attempt": 0,
   "program_id": "0xd40c36ab07d82002",
-  "program_id_derivation": "FNV-1a 64 over 'igneum-program/' || generator_le32 || seed_words as little-endian bytes || attempt_le32",
+  "program_id_derivation": "FNV-1a 64 over 'igneum-program-rw/' || generator_le32 || seed_words as little-endian bytes || attempt_le32 || mix[3] || load_slots_u8 || 'hot/' || hot_mb_u8 || hot_k_u8 || 'added'",
   "dataset_mode": "memory-hard",
   "seed": "igneum-genesis",
   "seed_bytes": "69676e65756d2d67656e65736973",
diff --git a/proto-cuda/packs-ca2-hot/hot64k2/program.json b/proto-cuda/packs-ca2-hot/hot64k2/program.json
index 5d402be4..16600ba0 100644
--- a/proto-cuda/packs-ca2-hot/hot64k2/program.json
+++ b/proto-cuda/packs-ca2-hot/hot64k2/program.json
@@ -3,7 +3,7 @@
   "generator": 2,
   "attempt": 0,
   "program_id": "0x322a62466d49ff66",
-  "program_id_derivation": "FNV-1a 64 over 'igneum-program/' || generator_le32 || seed_words as little-endian bytes || attempt_le32",
+  "program_id_derivation": "FNV-1a 64 over 'igneum-program-rw/' || generator_le32 || seed_words as little-endian bytes || attempt_le32 || mix[3] || load_slots_u8 || 'hot/' || hot_mb_u8 || hot_k_u8",
   "dataset_mode": "memory-hard",
   "seed": "igneum-genesis",
   "seed_bytes": "69676e65756d2d67656e65736973",
diff --git a/proto-cuda/packs-ca2-hot/hot64k4/program.json b/proto-cuda/packs-ca2-hot/hot64k4/program.json
index 436d58d6..4b842876 100644
--- a/proto-cuda/packs-ca2-hot/hot64k4/program.json
+++ b/proto-cuda/packs-ca2-hot/hot64k4/program.json
@@ -3,7 +3,7 @@
   "generator": 2,
   "attempt": 0,
   "program_id": "0x322a64466d4a02cc",
-  "program_id_derivation": "FNV-1a 64 over 'igneum-program/' || generator_le32 || seed_words as little-endian bytes || attempt_le32",
+  "program_id_derivation": "FNV-1a 64 over 'igneum-program-rw/' || generator_le32 || seed_words as little-endian bytes || attempt_le32 || mix[3] || load_slots_u8 || 'hot/' || hot_mb_u8 || hot_k_u8",
   "dataset_mode": "memory-hard",
   "seed": "igneum-genesis",
   "seed_bytes": "69676e65756d2d67656e65736973",
diff --git a/proto-cuda/packs-ca2-hot/hot64k4a/program.json b/proto-cuda/packs-ca2-hot/hot64k4a/program.json
index 1fc72c2d..59bc7cbf 100644
--- a/proto-cuda/packs-ca2-hot/hot64k4a/program.json
+++ b/proto-cuda/packs-ca2-hot/hot64k4a/program.json
@@ -3,7 +3,7 @@
   "generator": 2,
   "attempt": 0,
   "program_id": "0x7f581216e95eb062",
-  "program_id_derivation": "FNV-1a 64 over 'igneum-program/' || generator_le32 || seed_words as little-endian bytes || attempt_le32",
+  "program_id_derivation": "FNV-1a 64 over 'igneum-program-rw/' || generator_le32 || seed_words as little-endian bytes || attempt_le32 || mix[3] || load_slots_u8 || 'hot/' || hot_mb_u8 || hot_k_u8 || 'added'",
   "dataset_mode": "memory-hard",
   "seed": "igneum-genesis",
   "seed_bytes": "69676e65756d2d67656e65736973",
diff --git a/proto-cuda/packs-ca2-hot/hot64k8/program.json b/proto-cuda/packs-ca2-hot/hot64k8/program.json
index 63e52f1c..fb785143 100644
--- a/proto-cuda/packs-ca2-hot/hot64k8/program.json
+++ b/proto-cuda/packs-ca2-hot/hot64k8/program.json
@@ -3,7 +3,7 @@
   "generator": 2,
   "attempt": 0,
   "program_id": "0x322a68466d4a0998",
-  "program_id_derivation": "FNV-1a 64 over 'igneum-program/' || generator_le32 || seed_words as little-endian bytes || attempt_le32",
+  "program_id_derivation": "FNV-1a 64 over 'igneum-program-rw/' || generator_le32 || seed_words as little-endian bytes || attempt_le32 || mix[3] || load_slots_u8 || 'hot/' || hot_mb_u8 || hot_k_u8",
   "dataset_mode": "memory-hard",
   "seed": "igneum-genesis",
   "seed_bytes": "69676e65756d2d67656e65736973",
diff --git a/proto-cuda/packs-ca2-hot/hot96k4/program.json b/proto-cuda/packs-ca2-hot/hot96k4/program.json
index c0d414cf..893f13d9 100644
--- a/proto-cuda/packs-ca2-hot/hot96k4/program.json
+++ b/proto-cuda/packs-ca2-hot/hot96k4/program.json
@@ -3,7 +3,7 @@
   "generator": 2,
   "attempt": 0,
   "program_id": "0x329724466da667ec",
-  "program_id_derivation": "FNV-1a 64 over 'igneum-program/' || generator_le32 || seed_words as little-endian bytes || attempt_le32",
+  "program_id_derivation": "FNV-1a 64 over 'igneum-program-rw/' || generator_le32 || seed_words as little-endian bytes || attempt_le32 || mix[3] || load_slots_u8 || 'hot/' || hot_mb_u8 || hot_k_u8",
   "dataset_mode": "memory-hard",
   "seed": "igneum-genesis",
   "seed_bytes": "69676e65756d2d67656e65736973",
diff --git a/proto-cuda/packs-ca2-hot/hot96k4a/program.json b/proto-cuda/packs-ca2-hot/hot96k4a/program.json
index a1140783..ddb74759 100644
--- a/proto-cuda/packs-ca2-hot/hot96k4a/program.json
+++ b/proto-cuda/packs-ca2-hot/hot96k4a/program.json
@@ -3,7 +3,7 @@
   "generator": 2,
   "attempt": 0,
   "program_id": "0x2ff8e52c952a62c2",
-  "program_id_derivation": "FNV-1a 64 over 'igneum-program/' || generator_le32 || seed_words as little-endian bytes || attempt_le32",
+  "program_id_derivation": "FNV-1a 64 over 'igneum-program-rw/' || generator_le32 || seed_words as little-endian bytes || attempt_le32 || mix[3] || load_slots_u8 || 'hot/' || hot_mb_u8 || hot_k_u8 || 'added'",
   "dataset_mode": "memory-hard",
   "seed": "igneum-genesis",
   "seed_bytes": "69676e65756d2d67656e65736973",
diff --git a/proto-cuda/packs-ca2-mixer/mx4-devnet-epoch0/program.json b/proto-cuda/packs-ca2-mixer/mx4-devnet-epoch0/program.json
index dcce0542..64df83d7 100644
--- a/proto-cuda/packs-ca2-mixer/mx4-devnet-epoch0/program.json
+++ b/proto-cuda/packs-ca2-mixer/mx4-devnet-epoch0/program.json
@@ -3,7 +3,7 @@
   "generator": 2,
   "attempt": 0,
   "program_id": "0xa6892c64d9ddd7f7",
-  "program_id_derivation": "FNV-1a 64 over 'igneum-program/' || generator_le32 || seed_words as little-endian bytes || attempt_le32",
+  "program_id_derivation": "FNV-1a 64 over 'igneum-program-rw/' || generator_le32 || seed_words as little-endian bytes || attempt_le32 || mix[3] || load_slots_u8 || 'mixer/' || mixer_mult_u8 || growth_u8",
   "dataset_mode": "memory-hard",
   "seed": "igneum-epoch/edc4fa844da9dc98d37e965176f6558a31560e40502ab3ae5491b21aaaabfb07/day/69676e65756d2d6461792ffa50000000000000",
   "seed_bytes": "edc4fa844da9dc98d37e965176f6558a31560e40502ab3ae5491b21aaaabfb07",
diff --git a/proto-cuda/packs-ca2-mixer/mx4-genesis/program.json b/proto-cuda/packs-ca2-mixer/mx4-genesis/program.json
index 8b247276..be419a64 100644
--- a/proto-cuda/packs-ca2-mixer/mx4-genesis/program.json
+++ b/proto-cuda/packs-ca2-mixer/mx4-genesis/program.json
@@ -3,7 +3,7 @@
   "generator": 2,
   "attempt": 0,
   "program_id": "0x951b89584750bd75",
-  "program_id_derivation": "FNV-1a 64 over 'igneum-program/' || generator_le32 || seed_words as little-endian bytes || attempt_le32",
+  "program_id_derivation": "FNV-1a 64 over 'igneum-program-rw/' || generator_le32 || seed_words as little-endian bytes || attempt_le32 || mix[3] || load_slots_u8 || 'mixer/' || mixer_mult_u8 || growth_u8",
   "dataset_mode": "memory-hard",
   "seed": "igneum-genesis",
   "seed_bytes": "69676e65756d2d67656e65736973",
diff --git a/proto-cuda/packs-ca3-derive/dr736-devnet-epoch0/program.json b/proto-cuda/packs-ca3-derive/dr736-devnet-epoch0/program.json
index c4633cff..c61c2918 100644
--- a/proto-cuda/packs-ca3-derive/dr736-devnet-epoch0/program.json
+++ b/proto-cuda/packs-ca3-derive/dr736-devnet-epoch0/program.json
@@ -3,7 +3,7 @@
   "generator": 2,
   "attempt": 0,
   "program_id": "0x7f4a5ca0a3637820",
-  "program_id_derivation": "FNV-1a 64 over 'igneum-program/' || generator_le32 || seed_words as little-endian bytes || attempt_le32",
+  "program_id_derivation": "FNV-1a 64 over 'igneum-program-rw/' || generator_le32 || seed_words as little-endian bytes || attempt_le32 || mix[3] || load_slots_u8 || 'mixer/' || mixer_mult_u8 || growth_u8 || 'derive/' || derive_len_le16",
   "dataset_mode": "memory-hard",
   "seed": "igneum-epoch/edc4fa844da9dc98d37e965176f6558a31560e40502ab3ae5491b21aaaabfb07/day/69676e65756d2d6461792ffa50000000000000",
   "seed_bytes": "edc4fa844da9dc98d37e965176f6558a31560e40502ab3ae5491b21aaaabfb07",
diff --git a/proto-cuda/packs-ca3-derive/dr736-genesis/program.json b/proto-cuda/packs-ca3-derive/dr736-genesis/program.json
index 7a0ab9fe..4da56ff4 100644
--- a/proto-cuda/packs-ca3-derive/dr736-genesis/program.json
+++ b/proto-cuda/packs-ca3-derive/dr736-genesis/program.json
@@ -3,7 +3,7 @@
   "generator": 2,
   "attempt": 0,
   "program_id": "0x72c1d8048aef9542",
-  "program_id_derivation": "FNV-1a 64 over 'igneum-program/' || generator_le32 || seed_words as little-endian bytes || attempt_le32",
+  "program_id_derivation": "FNV-1a 64 over 'igneum-program-rw/' || generator_le32 || seed_words as little-endian bytes || attempt_le32 || mix[3] || load_slots_u8 || 'mixer/' || mixer_mult_u8 || growth_u8 || 'derive/' || derive_len_le16",
   "dataset_mode": "memory-hard",
   "seed": "igneum-genesis",
   "seed_bytes": "69676e65756d2d67656e65736973",
diff --git a/proto-cuda/packs-readwidth/scr0k32/program.json b/proto-cuda/packs-readwidth/scr0k32/program.json
index 2d28cab4..0467ec7b 100644
--- a/proto-cuda/packs-readwidth/scr0k32/program.json
+++ b/proto-cuda/packs-readwidth/scr0k32/program.json
@@ -3,7 +3,7 @@
   "generator": 2,
   "attempt": 0,
   "program_id": "0xe0b70cd155c28f4b",
-  "program_id_derivation": "FNV-1a 64 over 'igneum-program/' || generator_le32 || seed_words as little-endian bytes || attempt_le32",
+  "program_id_derivation": "FNV-1a 64 over 'igneum-program-rw/' || generator_le32 || seed_words as little-endian bytes || attempt_le32 || mix[3] || load_slots_u8 || 'scratch/' || scratch_k_u8 || scratch_kb_u8",
   "dataset_mode": "memory-hard",
   "seed": "igneum-genesis",
   "seed_bytes": "69676e65756d2d67656e65736973",
diff --git a/proto-cuda/packs-readwidth/scr2k128/program.json b/proto-cuda/packs-readwidth/scr2k128/program.json
index 4b6d69fa..85fd873d 100644
--- a/proto-cuda/packs-readwidth/scr2k128/program.json
+++ b/proto-cuda/packs-readwidth/scr2k128/program.json
@@ -3,7 +3,7 @@
   "generator": 2,
   "attempt": 0,
   "program_id": "0xe0afe0d155bc25d9",
-  "program_id_derivation": "FNV-1a 64 over 'igneum-program/' || generator_le32 || seed_words as little-endian bytes || attempt_le32",
+  "program_id_derivation": "FNV-1a 64 over 'igneum-program-rw/' || generator_le32 || seed_words as little-endian bytes || attempt_le32 || mix[3] || load_slots_u8 || 'scratch/' || scratch_k_u8 || scratch_kb_u8",
   "dataset_mode": "memory-hard",
   "seed": "igneum-genesis",
   "seed_bytes": "69676e65756d2d67656e65736973",
diff --git a/proto-cuda/packs-readwidth/scr2k32/program.json b/proto-cuda/packs-readwidth/scr2k32/program.json
index e9e8d9cb..efec3ac1 100644
--- a/proto-cuda/packs-readwidth/scr2k32/program.json
+++ b/proto-cuda/packs-readwidth/scr2k32/program.json
@@ -3,7 +3,7 @@
   "generator": 2,
   "attempt": 0,
   "program_id": "0xe0b080d155bd35b9",
-  "program_id_derivation": "FNV-1a 64 over 'igneum-program/' || generator_le32 || seed_words as little-endian bytes || attempt_le32",
+  "program_id_derivation": "FNV-1a 64 over 'igneum-program-rw/' || generator_le32 || seed_words as little-endian bytes || attempt_le32 || mix[3] || load_slots_u8 || 'scratch/' || scratch_k_u8 || scratch_kb_u8",
   "dataset_mode": "memory-hard",
   "seed": "igneum-genesis",
   "seed_bytes": "69676e65756d2d67656e65736973",
diff --git a/proto-cuda/packs-readwidth/scr4k128/program.json b/proto-cuda/packs-readwidth/scr4k128/program.json
index 4d0d0ad7..3ad7b630 100644
--- a/proto-cuda/packs-readwidth/scr4k128/program.json
+++ b/proto-cuda/packs-readwidth/scr4k128/program.json
@@ -3,7 +3,7 @@
   "generator": 2,
   "attempt": 0,
   "program_id": "0xe0c444d155cd78cf",
-  "program_id_derivation": "FNV-1a 64 over 'igneum-program/' || generator_le32 || seed_words as little-endian bytes || attempt_le32",
+  "program_id_derivation": "FNV-1a 64 over 'igneum-program-rw/' || generator_le32 || seed_words as little-endian bytes || attempt_le32 || mix[3] || load_slots_u8 || 'scratch/' || scratch_k_u8 || scratch_kb_u8",
   "dataset_mode": "memory-hard",
   "seed": "igneum-genesis",
   "seed_bytes": "69676e65756d2d67656e65736973",
diff --git a/proto-cuda/packs-readwidth/scr4k32/program.json b/proto-cuda/packs-readwidth/scr4k32/program.json
index 9bd6cf0f..2d1537ab 100644
--- a/proto-cuda/packs-readwidth/scr4k32/program.json
+++ b/proto-cuda/packs-readwidth/scr4k32/program.json
@@ -3,7 +3,7 @@
   "generator": 2,
   "attempt": 0,
   "program_id": "0xe0c4a4d155ce1bef",
-  "program_id_derivation": "FNV-1a 64 over 'igneum-program/' || generator_le32 || seed_words as little-endian bytes || attempt_le32",
+  "program_id_derivation": "FNV-1a 64 over 'igneum-program-rw/' || generator_le32 || seed_words as little-endian bytes || attempt_le32 || mix[3] || load_slots_u8 || 'scratch/' || scratch_k_u8 || scratch_kb_u8",
   "dataset_mode": "memory-hard",
   "seed": "igneum-genesis",
   "seed_bytes": "69676e65756d2d67656e65736973",
diff --git a/proto-cuda/packs-readwidth/scr8k128/program.json b/proto-cuda/packs-readwidth/scr8k128/program.json
index 8cbee7a2..23fd6d0b 100644
--- a/proto-cuda/packs-readwidth/scr8k128/program.json
+++ b/proto-cuda/packs-readwidth/scr8k128/program.json
@@ -3,7 +3,7 @@
   "generator": 2,
   "attempt": 0,
   "program_id": "0xe0d1dcd155d90573",
-  "program_id_derivation": "FNV-1a 64 over 'igneum-program/' || generator_le32 || seed_words as little-endian bytes || attempt_le32",
+  "program_id_derivation": "FNV-1a 64 over 'igneum-program-rw/' || generator_le32 || seed_words as little-endian bytes || attempt_le32 || mix[3] || load_slots_u8 || 'scratch/' || scratch_k_u8 || scratch_kb_u8",
   "dataset_mode": "memory-hard",
   "seed": "igneum-genesis",
   "seed_bytes": "69676e65756d2d67656e65736973",
diff --git a/proto-cuda/packs-readwidth/scr8k32/program.json b/proto-cuda/packs-readwidth/scr8k32/program.json
index 3b0163f5..75d7d9a0 100644
--- a/proto-cuda/packs-readwidth/scr8k32/program.json
+++ b/proto-cuda/packs-readwidth/scr8k32/program.json
@@ -3,7 +3,7 @@
   "generator": 2,
   "attempt": 0,
   "program_id": "0xe0d27cd155da1553",
-  "program_id_derivation": "FNV-1a 64 over 'igneum-program/' || generator_le32 || seed_words as little-endian bytes || attempt_le32",
+  "program_id_derivation": "FNV-1a 64 over 'igneum-program-rw/' || generator_le32 || seed_words as little-endian bytes || attempt_le32 || mix[3] || load_slots_u8 || 'scratch/' || scratch_k_u8 || scratch_kb_u8",
   "dataset_mode": "memory-hard",
   "seed": "igneum-genesis",
   "seed_bytes": "69676e65756d2d67656e65736973",
diff --git a/proto-cuda/packs-readwidth/w16/program.json b/proto-cuda/packs-readwidth/w16/program.json
index 8f563a1b..ad37ea46 100644
--- a/proto-cuda/packs-readwidth/w16/program.json
+++ b/proto-cuda/packs-readwidth/w16/program.json
@@ -3,7 +3,7 @@
   "generator": 2,
   "attempt": 0,
   "program_id": "0x6a183165e23fd2bc",
-  "program_id_derivation": "FNV-1a 64 over 'igneum-program/' || generator_le32 || seed_words as little-endian bytes || attempt_le32",
+  "program_id_derivation": "FNV-1a 64 over 'igneum-program-rw/' || generator_le32 || seed_words as little-endian bytes || attempt_le32 || mix[3] || load_slots_u8",
   "dataset_mode": "memory-hard",
   "seed": "igneum-genesis",
   "seed_bytes": "69676e65756d2d67656e65736973",
diff --git a/proto-cuda/packs-readwidth/w64/program.json b/proto-cuda/packs-readwidth/w64/program.json
index 48e3cfe4..2bb323be 100644
--- a/proto-cuda/packs-readwidth/w64/program.json
+++ b/proto-cuda/packs-readwidth/w64/program.json
@@ -3,7 +3,7 @@
   "generator": 2,
   "attempt": 0,
   "program_id": "0x5c427d666b4ed4f4",
-  "program_id_derivation": "FNV-1a 64 over 'igneum-program/' || generator_le32 || seed_words as little-endian bytes || attempt_le32",
+  "program_id_derivation": "FNV-1a 64 over 'igneum-program-rw/' || generator_le32 || seed_words as little-endian bytes || attempt_le32 || mix[3] || load_slots_u8",
   "dataset_mode": "memory-hard",
   "seed": "igneum-genesis",
   "seed_bytes": "69676e65756d2d67656e65736973",
diff --git a/proto-cuda/packs-readwidth/w64x4/program.json b/proto-cuda/packs-readwidth/w64x4/program.json
index de9bee3f..e857e56d 100644
--- a/proto-cuda/packs-readwidth/w64x4/program.json
+++ b/proto-cuda/packs-readwidth/w64x4/program.json
@@ -3,7 +3,7 @@
   "generator": 2,
   "attempt": 0,
   "program_id": "0x5c4269666b4eb2f8",
-  "program_id_derivation": "FNV-1a 64 over 'igneum-program/' || generator_le32 || seed_words as little-endian bytes || attempt_le32",
+  "program_id_derivation": "FNV-1a 64 over 'igneum-program-rw/' || generator_le32 || seed_words as little-endian bytes || attempt_le32 || mix[3] || load_slots_u8",
   "dataset_mode": "memory-hard",
   "seed": "igneum-genesis",
   "seed_bytes": "69676e65756d2d67656e65736973",