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.

“Leider kann ich mich nicht mal registrieren”

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 2514083622

Proof data

Record hash (SHA-256)

f9e4885dba4e5a6f2667e74952c5013e571c7cd99d5b4570ea4fd6798c530bc4

Signature (Ed25519, base64)

U0Vpunll+zpvisgDNKVeBQnFeVf41voZ9mwCkEfhmw8DbNySL9RNmI35rMg9KtAdwQSiroRSmNBOGxPfY6y7DA==

Merkle root

c35385e3159410853b606ace3c93abcb561dc35874bbfae2272c5b0050f06a48

Merkle path

["f9e1e0a6a010384f795318e26b702dfee12f64c2993d34a7f94175d1714365d4","94d97518bd069cc3e0e853530bf740949225345c8b878363bc1217bef6920078","ca76dbd845f2d3e14a34d62f7cb7c510cf5105e32a4e3b03ff212324c9fa38ad","d01d1d35c4a96538579ae54975ceb9c642a120ed0a09e8628d385e502e49dfaa","1c7b6ec8735daef26704662f32ff767b4b3f436d9e665eaac0dbd10f2a811026","1bf28d12e6298d69ede69e476ef410ea047959d9eab0e8f51cdad53ab8b37e97","5ee619841a26ac224db47fe4b388d5719a1f3d90ff889103fc16fde2b742733b","547027dffd888ba3bfa8648b717848a3e65f70d4d47a38f2c2a4c9a148b4de87","acceaf702bf23885f69b41147ecb75fe29d646e7d7378c13a8924905881e1f99","93ab4f73fa706463086148bddcfc9b439af1da1047973f111c90df506ae9344a","efecceb8286a6229e87b632af282336e6099f847b98801fd7659fd63fa8b4e78","f6736a9df340369491122dc83cdbe986eab98696122bad100ccfd05288b49a1e","c6a0d5b9a6cd8badcfc7fc966f87c537da74da6d7b76d14d1aef5f5ac379b21c"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2514083622 · entry 108e9186e8c5677a81ef…

Expected log hash

eb47f42546fcc705387579993679cd6250c0b995d01bbd10805cb4c8d66efe2c 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":"v1787123762743","kind":"published-quote","locale":"de","page":"brand:yumpu","quote":"Leider kann ich mich nicht mal registrieren","rating":1,"review_date":"2026-07-29","source":"Apple App Store","source_url":"https://apps.apple.com/de/app/id1465873689?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 (c35385e31594…), 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.