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.

“I can do everything with my original stylus pen on my tablet”
Google Play · 5/5 · 2026-03-15

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 2524110285

Proof data

Record hash (SHA-256): 9a0321c4a7db3a66b0754171f5e1752dfef4554387b2b1e2d5f10e7956c47078
Signature (Ed25519, base64): nP8+nXm9NVBxhW5pX7C7E7xAyC6Lqrr1LSdciXDVj53/A64m8XdGWfyuIRNdXCR4DmGghI3zH0FAFcVayA1+Ag==
Merkle root: 1154a265a990612db5567445e00872656e7ced32aff0b18660887a40a375699b
Merkle path: ["99fd3dfa2f9221beb6f2524952717a35c39670f46c3c5103ef5e72f7b0690028","f2d439bc44892ba136f546020ff582a6de1d22f8c98a8ee9699f21fae1d4ed4a","7984877789e213ce6026592baa8031852bb02011091fcb04c3c54aa662f6f450","860375e2c7c5b3d93ccf8a7131a45e6e0e356be2dab923bba1d8cd759575957f","a80402c59c15a6d1283e2d9a1e0769f92a1d50f87f4bd93d380a5b73c90ada96","92b0d14d9abc008fcbbe4b1c5675028a78316efec7a28a8292e7e848d41b6110","352cc2570ac4c4f93e0f682550dcccd39c8ab3758e2e02dd4b1df8e85ee36c43","04b1a6e6bc63d89191c50e84f0eee85b715c135c637ca6a683c88dd0f3973a1f","625defdb3551f3eb211f2e4a85adde2f031e3d11ac7cc8c290174476cb355340","1ab917d7b2543560dc9c55995bf9a8722c7e316f0837f9e5a456ac5e738a07b4","f7de92d9447987e1812501ef9bf67b76977280e4806dbf1e1b2a4ed23dc08548","58ca3ff511bd1b7c73c508be99c56634eb080f4838a95eaa3db274615f39045a","32c9b22b39a5569fa417655c25a8d82809e6f481de057c0c34cb767ef15a2528","602297dc52019bf7e809df446e2304ee5209e9b092e15c29026ad3b8e527c6fc","8f93c563d7c563da751df1a0efbe13b6ce9bd7032eb6dd0a995c545aff2f5a1d"]
Anchored: 2026-08-20
Public log entry: search.sigstore.dev, log index 2524110285 · entry 108e9186e8c5677a87bd…
Expected log hash: 34efb4ec1aab60168b83ec62d0334b8e10d9814c0de0cc0d3569d176ff20bc2d 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":"v1787152786156","kind":"published-quote","locale":"en","page":"theme:xodo/fit/en","quote":"I can do everything with my original stylus pen on my tablet","rating":5,"review_date":"2026-03-15","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.xodo.pdf.reader","v":1}

Verify in the public log

Open the Rekor entry (pre-filled with this proof's log index).
In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (1154a265a990…), which ties this proof's root to the log entry.
Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
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.