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.

“there are free browser-based tools that don't require installation.”

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 2612065734

Proof data

Record hash (SHA-256)

183ebefa4fe58ddb1aaa6dd45e6a28049dfb89b0c049e3ada6e13e07162e57ce

Signature (Ed25519, base64)

uDMe3pBAFaXrW0oaYX6my7KT+4Ie0rOi+sa2QhlMDbfe4J6B0UOtJDR5NKglib3SSbcrgohhiN+ry/dK/W+dAw==

Merkle root

62493148956a8c17abd53a8c9ed797b64e65ad5bb98d36b7aa8d51c339fff025

Merkle path

["183b1a479ca32dadd89e76961457f72a1a524d64db9c1dcf144719b82b59cb05","95000ca115cf795b8813f821170e9683481ec9be7dd92a7396a9c11bc2769734","46641ca11e44c41e25309f88162977d7187bcab75ac49db2bb35266f87f72953","63eba02ebe0fa7bca211537a71c031b4ad51b2769b588347c5e1641091a83c26","8e77661fd9ea2d767edd5e151cf6c2896533ed0b66e983d1ca0fdea137719912","0b56233c37cc303b386a8d7f4c1e093c9580412eb5d00891ec803df5267dc97c","0149a73b5fa85ef224fa052dacf095dece814c5c4004521fd0e4fba001659530","a8cc0f36f5c10d64e44f70bf1f835fd38111a126e3a666e1154326cae1ce52ce","8682f7300011b0b869fde92cbee84e2742d3a402f9f6a2d46df6146a7d8ab928","3ccd0972ecdbbeb2411fcaaf1a0675a56f15fc120df3f10b79ba8379b3c16eb2","ab3a12938713e647343c33bc800af25bc24b0a09ef6e271892d72b021e454ad9","aa27e16e99a5c7264be75cc6d887e1542ad1b5d8e7c00024d09648982d3b9c13","0d5bfb2982eb496ec91088407bc450b593806e0482bfe81826869f4aeb42c62b","8c6d2c7076ac2ee0b8e592fee4b535c629bf4ba08a80f3d9ff8794fd682b8ca0","81ca6ab71bdfc38d6690336508e82bd1e82f9a656f0fefa771d1028af8c796ba"]

Anchored

2026-08-27

Public log entry

search.sigstore.dev, log index 2612065734 · entry 108e9186e8c5677a3494…

Expected log hash

f8318c40dc89e43be6c4faea0c023b4821c7ae9aeb6f05e59b451eef93c53bdf 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":"v1787797679240","kind":"published-quote","locale":"en","page":"product:acrobat/merge-pdf/en","quote":"there are free browser-based tools that don't require installation.","rating":3,"review_date":"2026-08-07","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.adobe.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 (62493148956a…), 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.