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.

“My absolute favorite among email providers!”
Google Play · 5/5 · 2026-09-03

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 3668590798

Proof data

Record hash (SHA-256): 20b7fd40a2640042d83519603ae0ed94c04440ba1d70a1f99549a427a49499d6
Signature (Ed25519, base64): ZNd4C4f484F8rC7NDpWVj6XRoPSq1oZaRDbQfkwO29atQYi4v39f6PiEG05E5Iydv0IcUcbYW/W1u8F0In1hDQ==
Merkle root: 2d5c5745bb08542103114711fd42d520689060248b05b87be89b8ac779cb9fa3
Merkle path: ["209d3faef926e9811dc917e08782c168325e45950db0ea68995d539f196f82d8","ddda92c7c9f976d6d2c5051949d6ea3338491b0ff0c072ceb88a5e5f12bbcffd","0de1a0d2fab9ee84f332f3de4a5e09d4d683423d603292fd93664509bad9f68d","00d6edf394620ffba411624340bf7f777f1a2655f88da3e1d927eb6327ce0824","4ec6a0efec8c7d3ee75b3a5cc32f8df6b7b1d8e5b2b8a2400d1514ca2fdd9afb","5473c7c0e308b5df3c023a5a3f102319a20bef932e4c593ce8e81c5ac8a396d8","cd0df5ca79000f2faabff336fb1fa256f162018bd822e32467f0677a756126a2","9e8bdef4714cb5babba098c9f58b3b1e4f26397c02ee4114af2c7d6f5f93d83f","b13018cb07ca59a29c3673edeff6615f608b704b5dfa07f3d21612a3d117e5da","30a3b6e8295be06276352acfa0b1772a7434af3b313dd0697d744354243bd62a","af1387c92e45372a65ca4bbe31c4d5e96d8e18ae4f98d629bfda93177bc39dbe","d2e7cb1decb48678328a01c0cf84963af42024b0e7e340a2169845cd083c64e3","6559cfb6e02d82e98b805956e4adca3f29c70eccaa9b705ec81b278c9da83d06"]
Anchored: 2026-11-03
Public log entry: search.sigstore.dev, log index 3668590798 · entry 108e9186e8c5677a31bd…
Expected log hash: c5f232b23a7a0d0b1f2817c4d619127f695b0afb4a7021ccbe7d935023a45c7b 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":"v1793706397400","kind":"published-quote","locale":"en","page":"brand:tuta","quote":"My absolute favorite among email providers!","rating":5,"review_date":"2026-09-03","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.tutao.calendar","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 (2d5c5745bb08…), 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.