Public evidence ledger

The proof behind the preview.

These are bounded, reproducible development observations—not customer impact claims and not claims about YouCam's internal caching policy.

Problem evidence

Expectation mismatch appears before an irreversible cut.

Bounded negative sample · not prevalence

Observed repeatability

2 identical requestsproduced byte-identical results
SHA-256
b53062e7e436dbd96379a9f12d23972c8108c3f454e72ff03dd2483245ef43e9
Bytes
141,631
Assertion
228ce74984d1b41df00015c1…

Transfer stress test

3 / 3 recognizableWorn reference · angled/cropped · low-light

Visual review of synthetic fixtures only; no fit or construction validation.

Private image path

Signed URLs passedPrivate Supabase inputs → YouCam → private persisted output

No public staging bucket and no service credential in browser code.

Current deterministic demo

Frozen and reproducible
Render
b53062e7e436dbd96379a9f12d23972c8108c3f454e72ff03dd2483245ef43e9
Record
1db4422546a73dd2d9d33a1243954575ab5be9a74c5bd4bb873e1da6f5d11449

Three-key production interlock

Expectation Checksum

3/3

AI evidence, craft judgment, and customer consent must point to the same frozen Cut Card.

  1. YouCamBody-specific visual evidence
    KEYED
  2. TailorConstruction promise reviewed
    KEYED
  3. CustomerExact frozen revision approved
    KEYED
CUT RELEASED
SHA-256 1db4422546a73dd2d9

Evidence completeness beneath the three-key gate

Six conditions, or no approval.

  1. Exact revision
  2. Valid preview proof
  3. Complete human decisions
  4. No blocked requirement
  5. Current frozen digest
  6. Unexpired review link

Sources and reproduction

Inspect the evidence, not just the claim.

Every source below states its evidence level. Published files and code can be checked independently; live-provider and manual-review results are accurately labeled as recorded observations.

Recorded observation

Problem research protocol

Aggregate coding tables, inclusion rules, exclusions, and limitations for the 108-complaint formative sample. Exact reviews and identities are withheld for research ethics.

Inspect research record →
Recorded observation

YouCam validation log

T0-T7 timings, the 3/3 synthetic stress review, signed-URL result, repeat digest, and explicit claim boundaries. Secrets and provider task IDs are omitted.

Inspect validation record →
Independently verifiable

Pinned public assets

Rights, provenance, byte sizes, and SHA-256 hashes for the frozen demo inputs and output. Clone the repository and hash the files yourself.

Inspect asset manifest →
Re-runnable with credentials

Hosted acceptance chain

A sanitized transcript of the production run plus the exact four-feature harness. Re-running the provider portion requires an authorized YouCam key and 10 units.

Inspect acceptance transcript →Inspect harness →
Independently verifiable

Executable contracts

Regression tests bind the published hashes, exact demo-token boundary, four YouCam endpoints, unit costs, and the approval gate to the implementation.

Inspect regression suite →
Fast independent checks after cloningnpm run checksha256sum public/demo/render-olive.jpg