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.

“das app ist praktisch, da zu jeder zeit alles abrufbar”

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 2893887498

Proof data

Record hash (SHA-256)

fbd44cb1a11673b15662613c32f1e2a4d9060a6b7db83ea8aeb5fad10686e767

Signature (Ed25519, base64)

/ePV8067WkjqBi+nhREhPztrehtxiLdQOtv4s/ux4Zwqn4tAg68GD0my7ak5y+a5kXoBFByfbHMYobvm0S8IBQ==

Merkle root

2f068f3de56bebe7a575ba4a979c9244445d2350140e36238e088fa40fbfdd88

Merkle path

["fbcfc832b9d0e3513fad027a118aa9db7551a9ea61918c815ed392e8663dc474","07c2ba156841c1cd00ea6aa362e5bd91fb8abb8362c3cc952007a2839c5eb807","d528bc2fbf0e2b41e585e0d1db54ddf5609877ece94ff8d0fc9ed1e102c7e644","2700d99f5293a58d06d2dad27587d03b7a5498a89b787b11e7c13a246db3808e","8e99eee6a06e098c45ddc2bc513bae03cb4a3f28c868fe5e82cfe72087991354","33dc1270e59ff7b31e4de4eb9ddde2060cff985943cffc9e8c0f0d5c10bdd0a2","4938872d8cc25480cb5c1e63fb1352561cbf97b0522a431e9df17ecff0ab0de9","146e6dec09c21ca3dcbe0cf355fdbe8fea0e9961b8e9a897797ee08ef592096a","700def2d3e841e73b49d08f83c21849f560e2f60b557262d690f8dacad3c360b","609ad0ce546cf9c3d27da7a004290355c1092891631352ccddbf2e87ba53177f","21d92fb6a784fd2b7dddd5b9904a35859b73f0a7e827d510b7a7e106bed3f23d","71cd50b067ff32d173a37554b8e65642cf533aa669254bc42c5be6ecf57ec03b","34bf35d805c4f7af315854dc10a7a10ae0ea054d46dee40b360c3f04f8b8e60c","58a3dfc9ad8696e92f5fc9960e9c6bc4cc04e270091b574a948593298b33d1f5"]

Anchored

2026-09-20

Public log entry

search.sigstore.dev, log index 2893887498 · entry 108e9186e8c5677af79f…

Expected log hash

90099e0300c6e23b62e79318296ebab91bff130379d248ada57f044f77e72ccd 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":"v1789796056710","kind":"published-quote","locale":"de","page":"theme:concordia/quality/de","quote":"das app ist praktisch, da zu jeder zeit alles abrufbar","rating":3,"review_date":"2025-03-26","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.concordia.myconcordia","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 (2f068f3de56b…), 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.