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.

“Verification is currently not possible with a phone that lacks NFC.”

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 2525010456

Proof data

Record hash (SHA-256)

19e33eec17ca6f59a1d8f017bf72b504289f03fd41ea3c3b2dae0ad9dfca8db4

Signature (Ed25519, base64)

xZVbpb9V2Wz+ueb4FH99JZ/vg6Cc3FxL+N1hB6iIUoSd3HwsW49Pj/kkQ+I1VqavhVY7bFchH1KUkMMq0wQZBw==

Merkle root

c69b412346f0db8d88aed17dbaf2e4876a3743c1c4d16fb306ba56b5c0573123

Merkle path

["19dd911b2cf9c32c72af8f32c3dc9f03944e2b93ee723780814030e302b4df32","4b6e96159b63a47f718bafb7480c3b1ad4e0009a6a4a41e89844252f724b9cfe","f99a3ceb3288babfce8298d29fa6637f3fa3f6bb135be5a1fec36eb6aef55ce8","a6f6b89eed3f304952fa99a7d060d7c1a2c33ce34700ce0199cdd593329d391c","481bcf4609c6129a4934ad9775b28fcfa9cdbe14c4fc79fffda7e2fb0e7ae03e","a983d20c7f19e0653ee5d9db0470a2ceae8f43bc0f67f2b45e0a2ac886082877","ec17984587ed8e6bee0801483ab0799aff179e682035213b873b079d92ae93c5","13e9845f5b2173133d5592cee2d5e0dd26c52cbfe4d63e7f39bd6a7867ef45fb","aa14c38ed3b3f6508500c8866d84301670fbbb31c2a347e2487c3aa9555ecfd0","daa6418042135fb62ed892d7e04e829c44c2091f18a527ad3c3dc54fe77d7c66","9117844400e1f8b2cc2bf8b61c02c1490bcd3a7ccfee77c3bbf757588aed0393","721459d5ed2b625225b644c6314b3b4b68ccd1ec7d9cbfa0502a712e52e833b9","09997fd9b1ef8c57766815e6c9849e05f2447cb27e8d805273108da18c60273d","62927e8f71080777dd1935c21221e60b742dc0377a31e2f20a0a64cf6c3282e8","3da38b679e2392986aef224a332d14750fb3a22c4e75287765e8f68f575f24f3"]

Anchored

2026-08-20

Public log entry

search.sigstore.dev, log index 2525010456 · entry 108e9186e8c5677a4287…

Expected log hash

659be4fcc7663b2dc65a53351e16497fea44ed9ec8aef1f3c48c8e452b350dc6 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":"v1787194832011","kind":"published-quote","locale":"en","page":"theme:relai/quality/en","quote":"Verification is currently not possible with a phone that lacks NFC.","rating":1,"review_date":"2026-07-04","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.relai","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 (c69b412346f0…), 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.