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.

“auch bei Fragen bekommt man schnell eine Rückmeldung”

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 2948162176

Proof data

Record hash (SHA-256)

76b9e84b4c19f7139a0ad8c4a4c6e59ec9b594de73d20c963f424685c1553430

Signature (Ed25519, base64)

48xuELdOOK3CW9HZJ7VOX94Xxia53VlKNfQ+og/hMV5epj5D/KmE00fsridkxEORJn97LZd3iye+Y6kPXDT5DA==

Merkle root

5397210619679ac63434abd334c13f5aaccbd1dd184ad9d8cac5ebeceaa346bd

Merkle path

["76baa26d0b2e3f22be1a16be528b2a5b5672da72de365cee6991037f0f3ad11d","33346feb287c83e9e5f241fe1a02f1d0547c6669fcfafc8edbde3791647176bd","7823389743e0ca3f6e2e15dacfd0b6a883b71ad2f2a8ed45a0c89a53a134a1f7","5b6f81854ff30ca8e79dd57a1ebad29f591776f0b81709c3811596fccd72e6a8","f83730f0c7e8171226469b22c015def3b042eb96f1412ff9d7c39f952abf85f3","b5a321dc7b29d5f1ae35d9b1554c7010bc7820347b4aa1154207b9a1d19357d9","f734f6c36fc6f4e4d92fccc3e23a07fe979ea5250a629965769de4b70b12612b","e088ebd5b2cd7c51693294e27d432d3158adfe8ddb40c237f204b6a2b843a60e","6c079026ed9dd5c5a46269c6f596e866fc77c862f6d1770d44a3a82ff9305777","14be6fe50e884a1b4b951e5e6fa1a96719e8faf5fc1c9588cdadf1b62f27b6cf","d03ab0d5af0525317d7b078a57c0581a8f161ef990f077db88203a75760a9b38","39081e647d66856f4efcb9e90f0cfe2c81c995dfd64a8921978cee855362e1e3","48bc5ea5434a32841beac8d9496d2692095edbb7104396574890154d981868a9","f5d1cbec3469173c409764ba850b613628c88020363ace8f472e6f611d605e0c","eb97a4ce74ce5f5fa16f1703481b35cd770316cd3d34167e9b76f4403804f896"]

Anchored

2026-09-25

Public log entry

search.sigstore.dev, log index 2948162176 · entry 108e9186e8c5677a61d4…

Expected log hash

5ff8f25b7934b5d72d363d6805344624efba4d637f2c851f11783b259b9d81be 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":"v1790226990092","kind":"published-quote","locale":"de","page":"theme:zasta/communication/de","quote":"auch bei Fragen bekommt man schnell eine Rückmeldung","rating":5,"review_date":"2026-08-29","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.zasta.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 (539721061967…), 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.