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.

“2-3 ads even start for every song, ridiculous!”

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 3247835674

Proof data

Record hash (SHA-256)

3671699a01ec8cb82941c97fca2e07599401dc8b6024b5071019c657d0d4f3c2

Signature (Ed25519, base64)

NaqTzsunZ3JtKR+r+kLsv1N5qWG4JkVp777N25CXvgsCRXqZr6QWE2o5yK6Kbc9L39UppglbSpxUGyyk0YIJDw==

Merkle root

8af5f2f3f65c47a75dcdddbf363e3e76b22d37f4e953d150fcfa3e84bb04dba5

Merkle path

["3673117ca9b78ad14a1301a881648e3413c9b367b8a7db2cc01b4ef2d4bebc6d","6cd0a845140812c145bdb4b843739703e7cc077ff2e3971bd0d27c007e780631","469da65b360ce19be5dec7562491fc2d8f0b6c0818449a529abcde735617afac","7ca435a4fcf9805ab37bbfd433c114e20b21136db00adc4f1fa31e15ab11a80e","e8df03f2e935467df2c6bb87988d35e3a2da910158b1edca228e167eaba9ae03","18987a7fc881ab7fe3fb755a2d2a72058d6229e4e77a0ee9898ae5f754c1c487","761e3a54804809e661c53df3030e269e3015f16c4b67f6194e9392f920e8c116","d092bbb8034d806f55fb8310381189861801f6295e13459bfdb611298bc2845d","35b7dee735602f3e5d4f073470531b91120c3adaa48334716695411cc7021612","ea17c4110a172c543048bb89f394c864a8d90f9cc529b7dd64029949bc8e061a","f85dfdd2ab86046e8846d1cf4a09b7f25f7362e1cbbb39e975af34e4c92fc761","655d3cb3e6f23a95a7bcfab67fbd3f535bbc0ce71a1ebce283b6fa005ab8af3e","2df4d836b73633f71fa96faafac3d9d32f00951d180b99885afa9511763f7b1f","2212eb5ff51e97198ac2cd6542275dfcf712b9be9a8fab294a9bf844689bcee1"]

Anchored

2026-10-14

Public log entry

search.sigstore.dev, log index 3247835674 · entry 108e9186e8c5677afded…

Expected log hash

306cff230c51a4aeee6711c8f2603eb2af6985e8dc9f5dc959efafe3398b8caf 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":"v1791944613264","kind":"published-quote","locale":"en","page":"brand:spotify","quote":"2-3 ads even start for every song, ridiculous!","rating":1,"review_date":"2026-09-19","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.spotify.music","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 (8af5f2f3f65c…), 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.