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.

“Very good because I can go back.”
Google Play · 5/5 · 2026-09-16

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 3163352270

Proof data

Record hash (SHA-256): 1c6379473d2a42e7421b5b2d8d3ad3c1eb56fa765609b3d7c09e0a9b9d056435
Signature (Ed25519, base64): eVtUb10IVC/fJH1VZk0f88Em/P9VXJYtS0653euWpkknM2WpoK/bAoBAXpCbiFyrX+y1SDWGMXsBDcAUjBLTCw==
Merkle root: 784ff8fc3c42eac43c7d399f0d67bba55d28073a7e106789ae0c6c3f5ac9dcc8
Merkle path: ["1c62a0b6e9b73d13a22a5a666c003f0fe6a6ff78b3411251ee6691f159d7d4a6","f2a76f83c4622158964e53d5f60188a29c11f390a230208a6ddb6702ab9c1c07","70633ceb5afad3470ae67fa29ccc8e4863c07deb312d7e9d2d94cc07dc37d2ed","5c114adb5484ecee0d75a3926c86649325f3af6aefa971c885380980ae7bfecb","229fbe7f9663dc555aad37fa76303f973ad394048baf2f4ed64894aaa5083bdb","ee30179d7400c2882cb021e200e935b0f7934277e9000d5bcaacab71a700786e","5d2d86c71e163a59e307be91b69012108d5c9d69695a5a3e280d7239599c70d4","9b9c22315216df00f159fd3f4c5cb6729df2c06f964cb3a23bfeed2ac003833b","5b0df80b4ac26509cec57b85d5f601b2757199437ac5c1aa696d4761b85773f4","47487eb7c1405190daf603c40b580d820c0e2d811a1e21608efd8ddf2d5a31bc","c9529055fe5b6b0f37b66764f65f279ec072fa3a305dfea6da010f70d30ab502","438fc2375d6ac60843ffaeba15cd4e6719ab0c0a256a5e1e4fb5964975c2e131","b2e795b1a28ca13f7663ed8f62127f0cc32efbf6296671f3d7800b760642c1e7","7c65cdc9460755a327943aea2ce97e2f5c6080d778d9434fe2dafbfbc1e3b04c","5fa09e3847513934bffaf71960ac2a100e20422698698ab1e19a4fe8ac133514"]
Anchored: 2026-10-09
Public log entry: search.sigstore.dev, log index 3163352270 · entry 108e9186e8c5677ad020…
Expected log hash: a3ae0badac804d14d314abd0e71726d06a96c43a3840dc1d63acded9268c461e 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":"v1791543790412","kind":"published-quote","locale":"en","page":"brand:spotify","quote":"Very good because I can go back.","rating":5,"review_date":"2026-09-16","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.spotify.music","v":1}

Verify in the public log

Open the Rekor entry (pre-filled with this proof's log index).
In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (784ff8fc3c42…), which ties this proof's root to the log entry.
Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
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.