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v0 source pure

Package commit provides small, deterministic commitment helpers shared by the agent demos. On-chain realms store \*co...

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p/moul/agents/commit/v0 — shared commitment helpers

A tiny pure package: the one place the agent demos agree on how a commitment is computed. On-chain realms should store commitments (hashes) to off-chain material — reports, patches, verdicts — not the material itself. When several realms do that, they need to compute hashes the same way, or they can't verify each other's commitments.

1commit.Hash(parts...)          // hex SHA-256, length-prefixed (no boundary collisions)
2commit.Verdict(vote, salt)     // canonical commit-reveal commitment for a hidden bool
3commit.Short(hexHash)          // abbreviate for display

Hash length-prefixes each part, so Hash("ab","c") != Hash("a","bc") — a small detail that matters the moment a commitment concatenates attacker-influenced fields.

Verdict is the scheme the jury demo uses for blind voting: commit Verdict(vote, salt) during the commit phase, then reveal (vote, salt) — anyone can recompute and confirm the vote wasn't changed after the fact.

Pure, deterministic, no realm state. Import it; don't reinvent the hashing.

1gno test .

Part of moul/gno-contracts — moul's versioned gno.land contracts. See the repository for the full catalog, build/test tooling, and usage.

⚠️ Disclaimer: provided as-is, without warranty; not security-audited. Full disclaimer: DISCLAIMER.

Overview

Package commit provides small, deterministic commitment helpers shared by the agent demos. On-chain realms store *commitments* to off-chain data (reports, patches, verdicts) rather than the data itself; this package is the one place that defines how those commitments are computed, so several realms agree on the scheme.

Functions 3

func Hash 

1func Hash(parts ...string) string
source

Hash returns the hex-encoded SHA-256 over its parts, length-prefixed so that Hash("ab","c") != Hash("a","bc"). Use it to commit to structured off-chain material without revealing it.

func Short 

1func Short(h string) string
source

Short abbreviates a hex commitment for display.

func Verdict 

1func Verdict(verdict bool, salt string) string
source

Verdict is the canonical commitment used by commit-reveal voting: a hidden boolean plus a salt. Reveal the same (verdict, salt) later and any observer can recompute this and confirm the vote was not changed after the fact.

Dependencies

Imports 2

/p/g1magld5ptgzaktqcexxq0pgq5lmdf0kz6re8hlv/agents/commit/v0

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Source Files 4