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 thought you could create PDFs from scratch”
Google Play · 1/5 · 2026-04-17

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 2621546391

Proof data

Record hash (SHA-256): 0d039529fd5486553547109dda17ba1f6d822121e1a6c302ae61e04c98ce2a13
Signature (Ed25519, base64): 2I6VzEaTQ3GkbHSABDjDZ0d/ZlTxbQ2CXxBshcIrW0g6sC1+duQASom5scyKpT+uENEqbgB4Ibg/lgD6hXYbCQ==
Merkle root: 897094661611c7f6f667565ccf24b086fe433f50853a89527920398c9b990be6
Merkle path: ["0d04c7ed3a88dd9427bf8b925b3a78ba080a5f15a418c44de314514e475655d6","8ea99f6d2b0b01df314d3adba0ef4056f9a94b63c379a51f3d3fc73ee199c30c","23dd4449ce7adc2a6cf49635d079b9f90140f801ee00b51987bd49841a808e7b","0bd81ea5f9c0e066fd9da141ca6a99f9a40d527688f471b9394e7cd3ddab7795","31e97d11afee86610ee47bace1b561d99fad2697f9c8aa002dd94ba9d334f3c3","4fcbf58de3c73e3d4b033a9aea9cfec9ea4fd92abf7332451dda33f0f8f18e77","2972895ec97f610db9ca10bbcc8a2c67aa7ed2942fec6a81c78228fd8b0d951a","3e46133e1060281855af902a0edb968616c2d2c221e08ea9793018a7ee5a254e","2b725997583e60703c8682f571e9adc85bbf78c6686125e9c25562317cf73dbc","770954cc5c78a9161e66ef18ca2c0f947efacf63773a86279d0dc3c75e457c27","a1d665229261f9807083b4f0c266d840d95b12595b6fcb8e88a6f0bd2f78cb20","7162e4b99aa61c838147d793ec2d190efd35afefd2843d09783c269d2e52070a","5736b14a6ee95db57eb4c7d974614539ed67fc54a28619dfa971729b31256280","a1d9d348562bb2a87e7320356d42d9b0f701087c10d37ebf1716b02890730e63","6bf2266db580f32a2ce774610d26c445305bbb4615cd5a57e78c4156611f45e2"]
Anchored: 2026-08-28
Public log entry: search.sigstore.dev, log index 2621546391 · entry 108e9186e8c5677a3763…
Expected log hash: ce42e5a10ff40e11caca7d6020944d319ff4f139546f9e6702c021de8b61d36c 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":"v1787889108108","kind":"published-quote","locale":"en","page":"product:smallpdf/edit-pdf/en","quote":"I thought you could create PDFs from scratch","rating":1,"review_date":"2026-04-17","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.smallpdf.app.android","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 (897094661611…), 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.