Two SP1 programs: the shard guest and the aggregator guest (deferred proof verification of the shard vk). Host modes native (cut, witnesses, chain and sums, three tamper checks, stub), execute (cycles per shard and for the aggregator), shard (execute, core, compressed, each verified), block (compressed proof per shard, aggregation, verified against the shard program id and the claim). Every stage prints a STAGE line and a RESULT line with a UTC timestamp so a silent gap is visible, and the host holds a Tokio runtime for the whole run and drops the proof system inside it, for the sp1-cuda Drop panic (ledger P20). The exporter writes v1 fixtures with the plan and every shard's expected roots, links and witness size; --budget makes a test cut.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
The executor runs any contiguous range of a segment from a carried-in position and emits a boundary per transaction (cumulative gas and pgas, the carry link, the state root natively); the planner cuts at transaction boundaries to at most S_p pgas (provisional S_p = B_p / 4, the specification has no number yet), deterministically from the trace. Witnesses are partial Merkle Patricia tries (touched leaves in full, every untouched subtree as a hash, collapse-safe siblings carried) for the account trie and each touched storage trie; the guest rebuilds the pre-root from them, refuses any read they do not cover, and rebuilds the post-root after execution. The shard statement commits the prover's payout address (ledger P12) and the carry links; the block statement verifies the shard proofs in order, chains roots, links and transaction commitments, and carries the provers and the shard program id (design 5.1, 5.3). Port moved to igneum-exec b7fca5a0 (spec 7.5 pgas cap and abort).
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>
