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!”
Google Play · 1/5 · 2026-09-19

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 3178115911

Proof data

Record hash (SHA-256): 2a9930d1f7b8a05dd39df7b5dad0825602fa507ad6844855051a451f81aa1fa8
Signature (Ed25519, base64): nIdHxZxP+oFECJ8S0n/zFJ21C+ofz/+NinvkaQKF+nnbYBeXusQuUREM5U+VjEaTLUycAMcX+6iE1lZfWQECBg==
Merkle root: afb9ffbb4b4e88017e1c868247f919ebcfe69f09127d391e7daa08019eb2b63b
Merkle path: ["2a977e953d3b9d00252c257a49c0f377d8a2e90420603575d6a0b6e4aeafd9fc","bcab3e3e167aebc829efc6e2083eae97d19521696f8566bba41f37232e4f7d5e","b089684e1f727d7b0197c3f7fef9322ece0e62f1eca34713fcc0986b2a68b300","a526b2948942d13414679541a9f808b0bd0ca87ffadffd704eb12586e183aa43","5fe98ea9742e576969bd3d68961e924d486241984f056a26c4270a0b7cc1ef4c","5d3671c3ef5de98c92a393df03fc024ec6c808c9d76f951dc0f4a8c9b519ccf2","807b6fa1e3ce0d973ce54af5d7d523b66d1f9dad828a581fbd88622a6df477d2","5858adc9c9980b3d0cb6c4c8d027f2d8e52fcbde41db21084ca988ad9d6cefa7","10973e6ac1887cffe3a0ccbb4cb5c8fc3070ab4f17f776940212111375701acf","09dff2a9b9a8a7e6ab912b24265f45b99c479617e4936e07f3a2745a9db9f258","f83944b16fbf43a8904cde916c26d245f82f3fecd41aad7e2fe680a6de8825bf","e7d5f6e88126b47f3ee25c7741cdcaebb40c6bcd9d35a859108e3ac93e8a0b29","09648cb4275ce9eb9f26709778da1b3653a6ea84465537d5f6fe5c1b17d3cea0","15ecb20ce6559654c94b8b858c027c014996a92eb19771813db0b794d6214fb6","72bbc4ee0a973113b1d556f76d02fea2c4704794a0d313a96e49ff7b6174dec2"]
Anchored: 2026-10-10
Public log entry: search.sigstore.dev, log index 3178115911 · entry 108e9186e8c5677a2bba…
Expected log hash: a144ffc32dfaa9fe45b4895b7f4c17280667152868dd8de227ca2811c60c870f 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":"v1791604579182","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

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 (afb9ffbb4b4e…), 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.