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.

“it's good to use”
Google Play · 5/5 · 2026-09-20

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 3177778280

Proof data

Record hash (SHA-256): a2037b3b9553ec80b1ac2ca006a20519014768efb4197862a16e728073289df2
Signature (Ed25519, base64): 8L5a4rH0W4hhtEjGvZV5oZ03QeuD925aWuTgQ6ERguVsZ2troGGYTFbd5lVkWuzehuU9p5Ze8znUVjo6272vBw==
Merkle root: 9bf5e8bc71b8f6d2ce627972b9fb81fedd792f7b02f32eb60fb8da440673ef59
Merkle path: ["a203db385fb46f92046fb999d4a00b7b11d0f877b7952aeb342ab4044ce02524","e3db6f21e8e169f563d492652291458e67fcc9b7e07eebd6ef04f4a7af5d2d68","00e51c7d0d3bff03be817a68fd3d1ea9c4be7094960834eb887a63afad7c31ec","4cc1dd2aeabf6a60357a9771e1ea36cecba08cd9d71c80946e2d211ec125c9c0","6c46129d8f436d1a89e66ed97ea9448ce5ee6b263a5cde019399b23aefae1db6","8f2c6ccba7bd330e64bd5cd59ca4a0942b9a75327a0884b49157161c01feeb0f","b01a09e1f88d3d9d02ad388f7a8fa63605973e238111188a828a85e4c4fcfd32","07a179648cbaacb39d5ec62695c9308bc98b09993eae0f0aa8527fab5e73d657","9e17c7b3575537f18826848e4be8179f21b003cf6cfcedbb9df82499ad844072","820966efbf5b5fd2243a8240f84bcecb527685bf13a4c41b8a6c10098516a9ad","07da78a2ceb44d53e2ccdc8b4d4628def1146cac4b1b8712aa7dfff3e5813c61","bb3cc7d40a5a400ff842bd58bee12159fa7fcfa2da3c490fc1bf89e681560ba3","aa0e555b7739d6e04cbb925a0d34787576df4ae9ad90f53f6416ac2f935a93ac","e3d4f74560ebefc008080794ff80cf2bbc3851f4365eda6b2fbf79bf3ad31493","1fa7003be7676d7952d939a45bc47245b2ced828dca06428675c885e312c802e"]
Anchored: 2026-10-10
Public log entry: search.sigstore.dev, log index 3177778280 · entry 108e9186e8c5677a59b6…
Expected log hash: 6b6bda8efa0d998f344024bc1a70908bd21604d8857c81e0a6e6c5b1de7aa565 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":"v1791603230890","kind":"published-quote","locale":"en","page":"brand:spotify","quote":"it's good to use","rating":5,"review_date":"2026-09-20","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 (9bf5e8bc71b8…), 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.