Quote verification

This proves the quote below is recorded by Citatio exactly as displayed and has not been altered since it was committed and anchored. It documents Citatio's crawl observation; it does not imply endorsement by the source platform. The quote links to the original review.

“a good app”

Checks (re-run on this request)

• ✓ Signature — Ed25519 signature over the record hash, verified against the public key at /.well-known/citatio-signing.json
• ✓ Merkle inclusion — Leaf recomputed through the sibling path to the anchored root
• ✓ Public transparency log — Sigstore Rekor log index 2991846025

Proof data

Record hash (SHA-256)

3951203e7f98ceade1ce86d3f8b5c9e9e0986446aed9fe153b19fed5e01ea637

Signature (Ed25519, base64)

ps3dzordzfvKMHQu65L6Bo0H+tgD7cmFCuEVnnksMHcwYkO6qu8nTjArjXuHTILq7sLmIZLrhquRkUsGPvdVBg==

Merkle root

d312d00ed6ab2beb6e18f20d8087ad3474eb8b04b26d5ad949e9237bf3ca4c52

Merkle path

["39524343d7e8d4e02e83ad28b89d389c8bce01ebd94eb92721b44de3c434d862","77aae0eb348e2b7b656e9a26562a51a24a34da6d6975feb4c9d2aad77d4bec1d","58f9365ef14d368fbc6b5ed0569255929c1d889ae413b67880e46c47c521688a","7120c8530ca35e25951ad17cdd54b5b4fb6c7712c5aee1f80025df256bdc18d5","c7049611ce89bcf76130279eb4a960761dacbe93b6843057882e005ac54a6318","2be669d42092e027b89fded60c85ebfbc9ae8cd428452f849ff25a8a0e76425f","6e0dc4aca6e5f6149f59effcf25d39dd6c08846e80793b0a269662a347cca2e2","e1bf4b72a151966b7fd9a258d170a5223f9fca34cb4cb7b889774ce824226ada","493f6b8b8724fbfc4ecb35d943b1fc159a04fbef13bbf7b07f73c3415f2144c1","646964ba4da5ac9097b58fbb393c2d9b42ec637e1c08b3502e028d81ca1b3548","92b183b5eceb35a6a4f14c3b37eafc410c42fcb22d829fee759b04e7472ae956","ac54b15a133e12a8a44506d8d80bf563b1cd547eb295c733739336d7dec0aacb","4568be9f5fd943a51642cf1216eea7e9c24c72db1776101b5a3113d15eb8ad63","c979fe4edf99bdc6f66f54b8524194d66725def21e08cecedfbfba469c82e6f2","2fe1a36eecbe6e65e0243c1a81f5f430e558c99de7c492361bda367e122fe03b"]

Anchored

2026-09-29

Public log entry

search.sigstore.dev, log index 2991846025 · entry 108e9186e8c5677a5f08…

Expected log hash

321e41cd200068478c5cf6f353f00dbd75153d3d8a640e241b1a6e8e4f8ac2ea The log entry's spec.data.hash.value must equal this value: the SHA-256 of the Merkle root string above. Recompute it yourself from the root to confirm.

Canonical record

{"dataset_version":"v1790574513694","kind":"published-quote","locale":"en","page":"theme:delivery-much/quality/en","quote":"a good app","rating":4,"review_date":"2026-07-18","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=br.com.deliverymuch.gastro","v":1}

Verify in the public log

1. Open the Rekor entry (pre-filled with this proof's log index).
2. In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (d312d00ed6ab…), which ties this proof's root to the log entry.
3. Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
4. The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
5. Locally, without any Citatio infrastructure: SHA-256 the canonical record (must equal the record hash), verify the Ed25519 signature against the public key, and fold the hash through the Merkle path (sorted-pair SHA-256) to reach the anchored root.