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.

“They have locked the far majority of their books behind a secondary paywall.”

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 2913636507

Proof data

Record hash (SHA-256)

66ddce6e5ea282c2aec746f02179953f2a644fd2e0a8018e98d24011ad0aba56

Signature (Ed25519, base64)

FyVHBBmZsbMZvRPOo1EVlFQy+0Cn49b3Jaqd9iEpt6THXhJA9PGlOYcyJgUPcFg0SKwepzuT3IjRn56LvRcbAQ==

Merkle root

f26292e960b34f73f9768b4afc64585e265549d794b35b8167826c2bcda92ef5

Merkle path

["66dd7c596e998629c8f07d6830a3ad0f57ad7c8ffabfa309618f72a5125e2c60","62999e41b61789d2c7c0d133a1c833940e9645589800a619e05a057d33caa366","00a48df50aa9170fe66ad040412375b4432e157e740041bc0964426db0110e23","71080f977579c38e707bdcc09740a6fad8c1692259b5e2092a52baf248e03157","af96e5b41effe5534b05cd17ebdc8db3747ba123161ab911b79480870ae895bf","c4c1c7f42b6ddcab4c811263ea2e309324970927b1339b98564b50ed852593b5","7f0aacd9c14e394b2c786543f0cddf9c9595d936bc892145a4479e2c89cc8be0","d596287da6fb31a8f686e6670a857a81de2d17f54f20deb9df247f6b62aa8e9e","ce5a5ea70ca4ac6035b3db19ee2b99583bb921051238825c484c968360ad4cad","a81cb5decc8eef4f42ac3f3d121fc4a40deae1456d254495a8f45828426fb68e","83f83b22202418896d617cd92b2e4482067ac2ada20be851a6d737545d39a3a1","f3db9127b9da10fbb7693de00cf989028a504ba13d96eb2661dc5a2037470668","eca7cd52f5c219223fa262f727815d7426f47ee6fd8d3c4a33225271415ce785","7a8821e5f39bd89945ecf080ecd049c93644614124901c8b74f26df2e34d9289","e95e880a53b013b49906f2e6b9dcc652726333d77986f48029bb634dc427e2de"]

Anchored

2026-09-23

Public log entry

search.sigstore.dev, log index 2913636507 · entry 108e9186e8c5677aea51…

Expected log hash

417fac9b806377ff48d30ded01faf8424eb98406df713fe2564ee9077747e6a6 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":"v1790070376053","kind":"published-quote","locale":"en","page":"theme:everand/returns/en","quote":"They have locked the far majority of their books behind a secondary paywall.","rating":1,"review_date":"2026-06-29","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.scribd.app.reader0","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 (f26292e960b3…), 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.