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 suggests books similar to the ones you've read.”
Google Play · 5/5 · 2025-07-13

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 3273084324

Proof data

Record hash (SHA-256): 38cc7e44b115ae64888f97030ed27a7149e1d5153e426f6eda8065e5a84cc370
Signature (Ed25519, base64): Y8BBrSYc0TFnuQMIS0al58NKk9DP0g4dOpS4MZb2g2Q2lAvAn/fDZk7xtuzQJUviOXz94kD7LiI2x8SgO4tJDw==
Merkle root: 4591ccf5fcdb01ed421243d02df5f30203ce391c077d4ade1ff5ee97e69e252d
Merkle path: ["38bced7a417f874b1bbd6fb85e2583c0c758827b6925d109f504ac17558741a5","d8316850483c1bf472cbb6e03c5fb521e362c9e439e80588b016448b54d88595","2d12be6182275aba94ec25768fe3cd29765b51d12bf1990f8dc03baae8740d8f","fb6e2c7052e434db9897e79032869ad7ab7fd198ecd5d2db95ae21d8e80cb5b2","d750c9c15867753f82e4f9839ea04254794e11f7063f02ea2b799ff3df47f8a8","bc3b26ffad4a267814d736dc5b512b2af0c488761110b0d41cd74547f452ef0a","13924769c42c9366ef874d76c82563824d03196d65e8e861979a2b662b9f4dc3","547705080a0d62affd6a94e5cfdac8624257e4232e08abb2d635c93415f7a787","79076fa479bb5181a283ca5e2f020c97d66323cfa5a6eb4103057c0b45c09eb9","37f32bab5c12d31c2756572ec7a21dcd8c34d3d9ef114444085bf788d93dbb0a","4077d45f7e9b4c595bfe3585b1dc6afb588f7ae2c6ada74452a93c7e85829009","71deffdc3e60d0983d04bac22af47799e28ca987643ad6dda198476b887a69da","d52611af45c7ef524ab63e970b046a1061f8173af77bce3332bb854291964d99","04789af0aae7a52bbc7d5e129e675a1c89df82999aa606ccdd23b89f718c4ff3"]
Anchored: 2026-10-16
Public log entry: search.sigstore.dev, log index 3273084324 · entry 108e9186e8c5677a4edd…
Expected log hash: 52df3e0fd214b96d6c701f5f337408916b7566fa39826e2404f759c290be1eab 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":"v1792120358245","kind":"published-quote","locale":"en","page":"brand:everand","quote":"It suggests books similar to the ones you've read.","rating":5,"review_date":"2025-07-13","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.scribd.app.reader0","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 (4591ccf5fcdb…), 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.