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 allows me to edit PDFs.”

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 2683150346

Proof data

Record hash (SHA-256)

1443d1b62e1efc2468334cd40f41294aff95907e02fa13d73959464424e6d637

Signature (Ed25519, base64)

SJaiirtfAF81jKVbmjOB3YbVAp7lVAymb+LKcb3cxFguAtYlmQm42lrrbLTO/qP4W2gM/A4YJiEmTnnJIjiXCw==

Merkle root

ed1b76d4f3111cb6e235a9fe679fe4fe63795d3193935a8c023245679c12c88c

Merkle path

["1441d0673c0bae2b8caa6ef7767271908997108598c8511dfe4cc854d904985d","6d357efbc86be0021a5ecb2f1522d0b1475940997131ec401860849d282285c5","63370a055a60f28f7adedc678a1d1ca02c8ddf3d03b3f1518592ae5c1931467a","9629492d772386fa1aa101c4fb2dbcbebc411b89d34dfb80a237fe8bdcaee7c0","15946391817ef15a717c1ea2c8670ce579e5aa1cf5c5fcd12065798ebc8ee58e","9cd8278f6bf849c62eaa5c15c7cc69efaed660a57d520cafc6aead2c413e6802","5cffddd74cca29802c9b15eabaf6e0c73f15a599b17c84caf350de01dae9e22e","a234111c508bd13a83e0a551d47a8766b7327c16817ea7b4d2779bfea0f361a3","c1693ae9f45f890eb0cdc55ebf1c88d129fd8a5b4d124632bb45e3d1dd223cf7","cb90f700d062dbd3125e6d95fd56f5f849b0e0c14ff96509c47d1365d97a2e1d","19fcfb0164ff07216f6cdafc3cae8d76bf53cfd941710f95f1058e0faa3280b4","07f7d14c8e1cf61f4c1da21e46a47631e1db47dd71d22b170f100a5bf052a4dc","d95f737cdc8d09dffb520130b23d2e91ee7119eb9a2a85d7ec6c56a05cc092d9","222137c91498adc204f412ffa9667367d79d38be98153f9b235308fff5e7e9de","6ff3db889906bd05786277e2021c1872c21f64759ecafab0fa871f6865f90ece"]

Anchored

2026-09-02

Public log entry

search.sigstore.dev, log index 2683150346 · entry 108e9186e8c5677a5378…

Expected log hash

ce2f0f51099dd771a165694fb25d868068d124ce108279fd9df180f0ea90a863 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":"v1788320836912","kind":"published-quote","locale":"en","page":"product:acrobat/pdf-editor/en","quote":"It allows me to edit PDFs.","rating":5,"review_date":"2026-07-29","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 (ed1b76d4f311…), 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.