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 would still like to see ephemeral messages”

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)

bd5e0740ebd3ac38d188d5ff3735b9c6f2012cf83a711b0c6bef962ef58be2b5

Signature (Ed25519, base64)

aklz+v5vZeE1Z5/NTfwZ2O+sJsJjpZ3qZdG1DeSPQutpQNpz9x0hSlV4rvNRo8y7ORXfX5uAxuJknIrwYinrAg==

Merkle root

3030a3ea5b39192cafd732e0b397cfa387f40a2253f2715cd6a4d9d218dba468

Merkle path

["bd5e2e73ebb39990a02081fe152be620344784d91870fc06aab903e72c804685","cdba4d47194d2e2386e08696d475ae4538d3c3718a9f6acb4918e9a6fe679ae2","b1e3ed0dfcd6ef9c14331a163b0a6006cf8b0db59c6e45a65f9ba7ee6c679815","ce12620144f59b580ca879b64a1a76ed5e767509a17638c420dbcc518e9d1a6e","58e4484797927b9351027097108e25547a8f1149142c4a623027756146437646","330689b0145570cd08f8b4969459817730274ec037be0858dc5dd07b31c77a24","b807593b4cc4077ce9be2cabb5963c5a92280b030f99bcac33c4374b54d97f92","308e5e1b769be3f05ecd8ae8091108449eff63ad337609036efe6a4007067a36","0792e882a9efd603b230b343a5460dba873df1c6aced38ff42c4579803ac47ec","81b2b2fc8379d7ceb1ec4503d399643b528d8e4b61fcb7b3333a52102d084814","e22ba97db53351955f402bd98cf52996b5e62fcb9147a012e2b4915777ec0dbb","6414af2077d932f958e1184cebdf52b7cef062fcb96c437a1eb1bf1d3ce5c63e","830023881e03898b26228ec458c290ceeab4b00d9fe78083e86fd0ccc8674080","1c0d046578e667374df87204533133657b4a39b1566c3798d3efb2b6dff73361"]

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:threema/durability/en","quote":"I would still like to see ephemeral messages","rating":4,"review_date":"2025-08-10","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.threema.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 (3030a3ea5b39…), 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.