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.

“Ich glaube nicht, dass irgendeine ihrer Apps jemals ein Update erhalten hat.”

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 2582700609

Proof data

Record hash (SHA-256)

074703460b82d07d8eade60411263a57ce1bf14bdab6ff8144da94212f0ab6fe

Signature (Ed25519, base64)

ASYujZ4XBG+FutFBJZjjIG8X0BFoOb2bJkl7L0B3NYKwR5EWuhCuog3syjury0w4yAv5jFO2a/fBZj9VxBPVCw==

Merkle root

653f52f612dd7654074ec2f50a8258d24363de118d24fd3fbb293c3f9466146a

Merkle path

["074851e49927235c6e36a544a53cf6d4b8b32bce51972d1ae2489a93ee587be5","0e8cceb8e9a726a274f9b6a894c53e9c75d9c66eb2e37a6a067412c24057b8ec","bcd65923fdfdae74e115f60353c115f5df4d2fa6f62fafb8212447d00ac7b48b","e78436e3abac9ffe8247e21f5d427584ed09c08ac84d18c70e639e48c8a72ffb","27a8da61005167d6d6e5b18e69a8d8990623fb44a5fc3b685e3451d4aa8907bb","ccebc0d7757eaeeab058f9a560b635f9f5835a00d393645f6f3f3a157d3efb0b","a4747ef64a3e90d9c57b66b6a21c6b9943801010933d777203fc145d6e407218","b7bf86468bc93aa9091ddd9a43b49d0dff5ef3e1ca78b15112f3e81bf97dd444","9de042493ae262ce2ada432ab8ce806c99089a134fab9ae1106f08274f487c85","6fc6e7592732ca5bddba993395de6ae96c1bfe6e70807602b228978a1fa30748","e56204f1821ef0eb64f6695ae10ec59c473b495ccd38e242384b49da4e461f80","f20b68e10c9d60c824a39dc128151a5fb0347bced725edc264111d1392a6f092","9fcd88f1beaa69d65dea3d04b431d43ad97368c1462c24ff050124283ec46f78","88e03340b0b23badae5a3021870a121b2e386f6ec4446eb6072186f7c59cabf0","5fdd4fb85b0ec398c42530ef65e986b74edce2f5c14068ba5fbe6a72c94b89c8"]

Anchored

2026-08-25

Public log entry

search.sigstore.dev, log index 2582700609 · entry 108e9186e8c5677a119a…

Expected log hash

db705c1ce83f047166ef3ebf3406f1398f685221ea16db9703eceb49a1163aa7 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":"v1787633403760","kind":"published-quote","locale":"de","page":"product:proton/proton-calendar/de","quote":"Ich glaube nicht, dass irgendeine ihrer Apps jemals ein Update erhalten hat.","rating":1,"review_date":"2026-07-22","source":"Apple App Store","source_url":"https://apps.apple.com/us/app/id1514709943?see-all=reviews","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 (653f52f612dd…), 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.