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.

“Don't sell it exclusively over the Google store.”

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 2543266411

Proof data

Record hash (SHA-256)

a3ba257776c7920974b242e5456ee6b5a0f911ecb228ad7f7d6387c9bc1126be

Signature (Ed25519, base64)

9l8OLerIk1dx/ElPb8G6c7zD1ElLK12wlyyv2NuQVnC0mcFwRLUJrT41Ye37MoNA8L1LU3p+obf22bd/cWd9CQ==

Merkle root

8ffad6e97d1457610bec7a891f189d1ba7dd7a92ca672c69ff1ce3283acb4b5c

Merkle path

["a3b80e16abbfa399b71176f94978289321526f13f68f638b69d1e46ffb8be78d","316d49e591ded11adba8697b38a7ae437286fb519f0f37526a9b0352ba3e546c","1384369265176256c9a2def99d09ddf3a5cf39d8cde1aa1b4f597e34e4383dd1","676864bf377f9d2d47125d4e7ab49fd39a0b7825c3527e8ebd7a80e27cbe95bc","59818228c6f6ab7e9351db0c6844293f7cd115100cf38e8182f064b38c53dfd8","ba647cdef0134067e6eed19942ed5f8999a2d8fde9d6b62cb6f7dfd84cfefcfb","aa9bc6b4e8ca759e31750b9c341aa8098e6e70ab8ab4bd59f6f8167b20bfe470","00bfc8b1412b708b752505c987d619016d18313e9126bdb4a04da4f012d6dc76","828e2816355d3473f32394bfa6b2ca0bc029972b6d648de3cba988c3473437e0","cf7ac4c3f6fb711a7f44c4b77b7a7bf456cce4ef1656944344caa21c87f86019","44d4799d5c19906b95ceac10b5746cb0db80d28bf67a1fc8345b06c08c3952f4","9ec9a8df929db493acf468b87619419d60b2bc485a5d393354eb9a1942f9a242","39a48080eedfe395d9b5da7251ccf1f49d6794a6866e66ab48839e2e5cb3a5bc","9d2fe576119ee6748db015f1bed3e423f559575b84b49b458e2b5fc136d5fdd9","e9f7ba9964da1314f660fb2f84a68d574ffe9983879b5b54001a09ca5cb5f33e"]

Anchored

2026-08-21

Public log entry

search.sigstore.dev, log index 2543266411 · entry 108e9186e8c5677a241f…

Expected log hash

443ef8f29d5167ebb4c56a46778facd07b7651afa8db2d089c14a991ce0d04db 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":"v1787284817344","kind":"published-quote","locale":"en","page":"theme:xodo/returns/en","quote":"Don't sell it exclusively over the Google store.","rating":1,"review_date":"2025-10-22","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.xodo.pdf.reader","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 (8ffad6e97d14…), 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.