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.

“Nach dem letzten Update lassen sich Links in E-Mails nicht mehr öffnen.”
Google Play · 1/5 · 2026-08-12

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 2681318538

Proof data

Record hash (SHA-256): 10ef3346d9eebefdcba27fe8899c5499f26c7eb14253c90da384dd551d6b4354
Signature (Ed25519, base64): iCN5cOucr/8ZL2oIHYDAvND5pnVGvmIBf9TOsVkFPSFhJVZoSyDeXuNjK7cmSa5lJ9cA8Yjuqh2yuEZqaLocCw==
Merkle root: 80545feed588a969110bcd2c8e526c8c2e400cad7348c7872c323a1674d2355a
Merkle path: ["10f0d1b87ee7fe2f1b86599148e877905d6b742be10a4fdf5d16011dd2ce7758","893f1b350f2616782d78f9163c8a703a0fcaf202be5ae8bd19c6be90604b922b","65ca300690799dc51847dba3502bd083a1e73af463275c5d303f6a91262eb960","04732ff6f7abcdc4fedfd840b6820821119acc1329bec6133b08a4c8fd294c2c","f9ef0150acb8d09fee9ae8be6b62e2d3b89b67429abbca1a64c9801d1d85b6d3","f81b363eea152fc7b2178016e4bc84988b2e5015b853dff974b0c068ac478f6e","0c3e15a7f63c1a540190ed1a6ea9cc4a5767c1120eaf6ba2abb4e99d17f27307","9b2ec6e39938f06cab8e429dd2caa235095f3641017dc14f91743761bb0cceb0","126ce6f2bf876ba51819cad803c5bb734932e922d8e370677d8cbc4a65c7c10a","60797edd9fdefd42da4b986593bcbe55b0f91b04f36ec8dab1bbfb0a84cae7f2","37981614f0ed279c371bfa005ef160504923efac9093e01ab20c3da0c1d9507f","0ca1719d1668d120a6fce323cc79e9d42ad7abb5c9a5dac5c512164c0396f635","cf85b24fc1eda5aee2e6660fb94d01e1afb915d56f864de60a3987cc95b2cea1","8378d9d6ade0d6214a847a4a8145a9f89a0810e29d8d29962807c9aaac17e271","fca9ab6e6247b2eeb89a8619f295121cacecd7391ef0e06251791813430b969a"]
Anchored: 2026-09-01
Public log entry: search.sigstore.dev, log index 2681318538 · entry 108e9186e8c5677a4bab…
Expected log hash: 663cb0c78a61cc964eb6f0e00407fec6844129fb0623d2ac072b7b2e4274054b 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":"v1788302168109","kind":"published-quote","locale":"de","page":"brand:proton","quote":"Nach dem letzten Update lassen sich Links in E-Mails nicht mehr öffnen.","rating":1,"review_date":"2026-08-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.protonmail.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 (80545feed588…), 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.