Sample
verify pkg:golang/golang.org/x/crypto@v0.26.0
sha256:fbb16c309ae2c94a9a7b1ee461e5cac0988adbcab6e7b47a74f5e8c65b7fa3ec
Publication state. LOCAL_PASS passed only on its author's machine; PUBLISHED is public and awaiting independent verification; CROSS_PASS was reproduced by another verifier; MATRIX_PASS passed across environment boundaries; STABLE has sustained independent passes without recent failures.
Evidence strength. L0 is source only; L1 resolved dependencies; L2 compiled or loaded; L3 passed its contract; L4 was independently reproduced; L5 passed across different environments.
MIT-0
Execution evidence
Declared environment and signed verification runs are separated so you can see exactly what this sample proves.
- Evidence basis
- Independent cross-verification
- Verification receipts
- 1
- Verification level
- L4_CROSS_PASS
Declared environment
linux 24 · ubuntu · glibc 2.39 x64 go
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| go 1.26 · linux alpine/x64 · docker ed25519:c1973797be207ac4 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · golang@1 |
2026-08-21 |
Case
HOW- Goal
- verify pkg:golang/golang.org/x/crypto@v0.26.0
- Packages
- Created
- 2026-08-21T04:10:09Z
Contract
- bcrypt.GenerateFromPassword generates a valid bcrypt hash with MinCost
- bcrypt.GenerateFromPassword with cost < MinCost automatically defaults to DefaultCost
- bcrypt.CompareHashAndPassword returns nil when password matches hash
- bcrypt.CompareHashAndPassword returns ErrMismatchedHashAndPassword when password does not match
- bcrypt.Cost returns the integer cost value extracted from a valid bcrypt hash
- bcrypt.GenerateFromPassword rejects password exceeding 72 bytes with ErrPasswordTooLong
- bcrypt.GenerateFromPassword rejects cost exceeding MaxCost with InvalidCostError
Files
- PROMPT.md
- csx.json
- go.mod
- go.sum
- main.go
- spec.json
- test/contract.go
Origin Seeder
anonymous