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.

“Es gibt auch einen erschwinglichen Studententarif.”

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 3138947147

Proof data

Record hash (SHA-256)

59a42618cdcf2796d903abd9992e6b443cf241c55b33794c06e9f8758a1f28da

Signature (Ed25519, base64)

r+c+oQKqNX8WkA6dXPamm2l4eBcwP5XO2Y4aeMRJ3h2QoP8OYmEaA9bWqaswhnfaCfC+R47ughsP3i1+WOkECw==

Merkle root

1b26d1b85473caad1868633ec4c931eb970e81199eea87926818f3f1753af37b

Merkle path

["59a40429084ca0117febef5e0607ac9bc3fe2ba3a29dede4dc122d083147859d","3cf0c76ee04ef045a2cbfeca411972bc71f50f6ae4870ba950dbde82a5563cb4","e2ac8367bcdd27ee4f49a6b142d18550265667df73866ed51d12c62f1614c887","d70094c421d58652f2d7cbc040428e3c5b02e38ebc737f8d08c3d92f8c4aea03","891ca7ea396fafff7e224249f081f7381486a82263a1d41b24d2daba138f3085","cb133a8b5490a55f9a27e69d834f00dfd730a026e30b7e07d24e1b602519c83a","2da37ef33281383b3c21a4c8325b19f9328bf4435379dbfd93b6b5014aa06528","8fe4c8e9baca9df848f4303f6f96ea189489ed276de9a820c247f9810cda07d8","726450af17d5a9e1e6f28deb4e4424cc3867c10f340883aeacf8fe36e5608291","8e2d39219ba1cd2fefdbe96867da10618134027bfa789d1f4cc44b52a3255574","f750d7f13b683f4e0f5dc33c2af2d7c0d2fe5ef63e7c2840f1a41143c3b57276","68eab88f528e7594e0713596e991d2c6e85ad1c2a4c7900286d4d36034dd3c79","37604e9cfa534e41f07f2684765be268e5dabe791ee84c3a2f9eb30308644a67","a52caabaaff23a9dd211857be614b6dbb651e724ed1f53485e9621733590c1c2","06054c91b82ccf7b99bb6b4fcb7c60afa97f93295e6829b75e5bf1efe9493e63"]

Anchored

2026-10-08

Public log entry

search.sigstore.dev, log index 3138947147 · entry 108e9186e8c5677a2712…

Expected log hash

8f66b765b7efcb11dcdcf57b81c46ed3317a5895f5b870638e23b76f1efbb2d5 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":"v1791425549743","kind":"published-quote","locale":"de","page":"brand:deezer","quote":"Es gibt auch einen erschwinglichen Studententarif.","rating":5,"review_date":"2026-09-16","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=deezer.android.app","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 (1b26d1b85473…), 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.