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.

“I have a premium subscription. still I see ads.”
Google Play · 3/5 · 2025-07-23

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 2514446349

Proof data

Record hash (SHA-256): 641b53a21289f0d550cd489d7f5d9504116d88e01d7af752264476b82b61ee83
Signature (Ed25519, base64): B1udGUuz+RMgO2OJoi49fPXTxeiDYDN6wZTRN9uYawRCFqLSdSnXJaO+BmFaRaKjed/Fx4TIfqXeV2UGnj7JBA==
Merkle root: 3030a3ea5b39192cafd732e0b397cfa387f40a2253f2715cd6a4d9d218dba468
Merkle path: ["64155030e675c0dd1fc164f5a2c4b2d7f3937e3de34b07c4cc1edce4ad8af8de","3d5d2545fd703dfff3202714d152998191982c641c795541396fb1f29f8ab560","aa899bc9fe89c6b7d90c62a22f8c3a083097939ab5bac7809b4d1a509859cf40","13c96ec0c02768386c8521819711592d6c81df4b5755a4f0c7c6ce97a020b768","d3d4a571c90e80e89a5128e6a3eddafba32e7c03382368d6305da27d5beaa919","a3783b7f91d2f63efaf548ae65532bcab53ba80cdd031a509a7dec3d76ed14de","c734beaf43e7198d3a89817ff202c274925d63defadcb675bf6a8217ee359b94","70752ccb66f9b013bffac5a98d0acb966392917d52cb36957d31f682032feb56","f026c8fbcc08ab11bd4c9eb5c4a6f9d6adfe63a9ea94090d079b6aa9f5371b62","73fe595fbc02237a5a42892bab174aba14081c51477cf88cff1d6c3ebf9a62d8","490fc300bb843ba225af23ffd7f081dfd98b63f6c5ab625aeff242372f46265a","0f257034541900399484a35ad33dd1abeb8d1b7611cbc2bc7417a6638e5edf50","e19c6eff657ea7d0ede33010cd88abb8a9e01c28c7b3ec485b702f7e37c24957","fa236bbf83f61e60a6b63c899666e78098c5b5cc95b126245f16085503380c3a","559fcf7745d7b07c729ccd960c18a4660eed501cde8669d27c3235203d371b20"]
Anchored: 2026-08-19
Public log entry: search.sigstore.dev, log index 2514446349 · entry 108e9186e8c5677af084…
Expected log hash: 901e903dca7784cbcc0b860ca8f2ae684aa8c7d566efb3654aface7bae409ccd 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":"v1787128322154","kind":"published-quote","locale":"en","page":"theme:meteoblue/price/en","quote":"I have a premium subscription. still I see ads.","rating":3,"review_date":"2025-07-23","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.meteoblue.droid","v":1}

Verify in the public log

Open the Rekor entry (pre-filled with this proof's log index).
In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (3030a3ea5b39…), which ties this proof's root to the log entry.
Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
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.