On 5 October 2026 the Mac's host (shard program id 0x0559759b...) rejected every
proof from PC 2's host (0x05db1aca...). Both were built from the same guest
sources: host/build.rs compiled the guests on each machine and the ELF depends
on where it is built (cargo's -C metadata for a path crate includes the checkout
path; a worktree on the same Mac gave a third id, 0x0dfade07...). The node's
verifier also spent 114 s to 138 s per proof in the prover client and both key
setups before a 0.1 s to 0.4 s verify.
- elf/: both guest ELFs, their verifying keys and manifest.json (sha256, ids);
host/src/pinned.rs embeds and checks them at every start; the prove modes
refuse when SP1's setup does not derive the manifest's id
- --mode verify: LightProver with the pinned key, no prover client, no key
setup; prints the proof's own program id next to ours ("IS NOT OURS")
- --mode id; igneum-prove-pin and pin-guests.sh to re-pin; build.rs builds a
guest only under IGNEUM_BUILD_GUESTS=1
- tools/ci/pinned-guests-check.sh: elf/ must match its manifest, no script
builds a guest outside pin-guests.sh; make-package.sh and build-dmg.sh print
the pinned ids
- unit tests on the pinned set; bench-log entry with the three ids, the cause
and the timing: 127.0 s wall per verify before, 1.8 s to 2.4 s after
- rollout order in proving/README.md: every prover and verifier moves together
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
proving/igneum-prove: core (port of igneum-exec at fb33069 as the block statement), program (SP1 v6.8.1 guest),
host (execute, core, compressed; ProofSystem trait with the stub and the SP1 implementation), export (cuts a block
out of igneum_exportSegments and checks every state root against the node's). Fixtures block-78-increment and
block-56-transfers from the 3-node simnet. proving/windows-wsl2: SETUP-PROVER.bat, setup-wsl.sh, PROVE-BLOCK.bat,
make-package.sh. docs/plans/proving-v0.md: the devnet v4 shard plan, what tonight's proof shows and does not, the
morning acceptance line. Mac CPU baseline (block 78: 626 k cycles, core 22.0 s and 7.3 MB, compressed 55.7 s and
1.27 MB, both verified) appended to docs/bench-log.md, left uncommitted because that file carries another agent's
pending changes.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
