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.

“they had been offered good and fair service for several years”
Google Play · 1/5 · 2026-05-07

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 2542751096

Proof data

Record hash (SHA-256): 5cccfe7c7b48a6f4aafadea410d2348ef52a77807bb283259494c4e9c30fc9ff
Signature (Ed25519, base64): bTBF2LVCd4KKKHr/+XVDOg+KqYNReqpvTU5SLjK1gA0YiIUGNHftCwrDgp+JlLmvnnUH3sxDwbkfE/b0PzxTBQ==
Merkle root: cc9af896bdf0beb88857e1dcc841c404ccd4c59cbcb6932f17077fc8aa87fc23
Merkle path: ["5cc5c88631d25b2ea2581b218b96e7b64c8e4b9fdae80f68b4deb5d79a5d19d6","f141aeed9b2591b6ee0f3c976ad6e8ebd9952ef7fdfbc2dc35c311dd3f547b97","cc410356918c1749e2f3983aeeb5466b5d76a2edb1f6e7415299855bc00e7310","8be834ba660a664ff6ded9acf12ebf6e981ab75c11d45467e8a5650d3291b807","2c63b1fe710906f857ad26a7dc7a3bf13cab0e3031b3d324d7d6d61f7e73f36e","66a782eff5a550d27b16f48d0e77bb639f82a4ab838334a09f0a0c6ebc3c4c46","f764b50c610fe70e5f73a3c534199e4088bfd3bde7b89c6fd7104eec8cdb6bda","174f33abe6199be7324cb7f78154f109d6df13bed65727fa0bbb979124c6e443","f891a51e4a046f79fcf2f7477caa4f8d5a901468a89d2026aae391b3b921e05c","498bd58bd56b8e45e3d434453033a611b16b86968fc7c86de6817801533e4670","eda20f447ab5c82ce3264dbf88dd828d9a59dae75690f9cab651e285a1bde01f","a0b87a0bb877d575137947d14d0bd97ce13744bebb954d336cc7d30ab5c1486e","d2a0d95049b010a02dac5bc62f9c8cdbc0aab414d57731175348e6bac7bfc76e","0f351cde6b1d9915cc0e417c0e2f1f0e3b04741e1975a4ad546a8eefeb399e09","7e6c62c2991c7cac05134c9f9e2ab89c75f6106f706f524eb2e9fa9f554216f5"]
Anchored: 2026-08-21
Public log entry: search.sigstore.dev, log index 2542751096 · entry 108e9186e8c5677aaab3…
Expected log hash: 8251ea19feed4cbe325f48ba93f0e47294878633f5d43178e4a3a023547e795b 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":"v1787281943761","kind":"published-quote","locale":"de","page":"product:xodo/pdf-editor/de","quote":"they had been offered good and fair service for several years","rating":1,"review_date":"2026-05-07","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 (cc9af896bdf0…), 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.