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.

“This document cannot be converted because it is too large”

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 2525010456

Proof data

Record hash (SHA-256)

60e1eb44dade403f100e62db15ee2003b2ad6431c20c58f807f0e39dfa5301c4

Signature (Ed25519, base64)

saVR2p7Bm96JE9KLzdRbaYOzTt3cFJQz9sgkwii72JD2rUrIourcnNpVIflse2DOQVpEJCwNWTZqJP5Yu4SyCg==

Merkle root

c69b412346f0db8d88aed17dbaf2e4876a3743c1c4d16fb306ba56b5c0573123

Merkle path

["60e646f43cc478d838e0065431b5f3f41e103e0af8792c1d81065267125f5805","29c4707fba75029ce2f38d98cd771169b1c88f665bce85aac01c7c1dc6fe86db","2254be73864e5abc1287e9d8b2c72fadf9c901b7bc867b2a46f2333301c40c05","39ec6054df76dc62bfcbfbeca5a18f93cb2c13b7b7f9898b7ec854f15435f209","0a0d6c6b8db37eb495000296a41371bc9f4bc6f6c3a1cf64fb74b92c43e1d907","d42ebc7ae8be083e76722a53632d218be00d0ff2fad7c35e43f6c54437b2d9f6","c316289cb58ebe3336da80dccd9caf8cfdf7a3bb5a02d3c55e2dac54347466a7","fb136ab8cc02033454ce06d2954d00b1dd700c85d4e8ae35e0e6419f7ca54788","c3c86e223d98572cb0034250fffebdd74514dfcec689caa2bbd0a932b4538207","bb5b53971b1a7f75e92cb9a263dd69462e277fd680040e7a181c724d5353d459","7c6063b192b795007db0a5b3f50559ba693175c61b3bb1978ab548035e173f1e","b9412849d9d6bdae9bc716b14566deaafbebd8e51f6741fa3712d78fb28fc74a","ceee0a42168dbf7fdebe6a87c18868b362d983067ee9d54459c89ffba781dde3","7374897de84b1f86ca0356b906b6c1bc842b8a45ccf90424df2bccb9b7b03d1b","3da38b679e2392986aef224a332d14750fb3a22c4e75287765e8f68f575f24f3"]

Anchored

2026-08-20

Public log entry

search.sigstore.dev, log index 2525010456 · entry 108e9186e8c5677a4287…

Expected log hash

659be4fcc7663b2dc65a53351e16497fea44ed9ec8aef1f3c48c8e452b350dc6 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":"v1787194832011","kind":"published-quote","locale":"en","page":"product:acrobat/convert-pdf/en","quote":"This document cannot be converted because it is too large","rating":4,"review_date":"2025-09-23","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 (c69b412346f0…), 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.