1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2951f8671f1d05a57134a6da75b8047dd0734a33c1b7522159b05370e4112fe. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6c61f681-f65b-4248-ba4c-41488000e22b.json and https://artists.proofprofile.net/proofs/artist/6c61f681-f65b-4248-ba4c-41488000e22b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Petru Guelfucci (Les plus grandes chansons corses)
Chansons Corses (U lamentu di Cursichella)
Corsican Songs (The Greatest Songs of Corsica)
S'o chjodu l'occhji (Les plus belles chansons corses)
Memoria (Les plus belles chansons corses)
Les plus grands succès de Petru Guelfucci (Les plus belles chansons corses)
Corsica (Les plus belles chansons corses)
Corsica - Les plus belles chansons de Petru Guelfucci
A Tribbiera - Les plus belles Chansons Corses de Petru Guelfucci
U Mio Mondu - Les plus belles Chansons Corses de Petru Guelfucci
Corsica île de beauté - Les plus belles chansons et musiques de Corse
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x005d25e0e3bf446764e348d09a59f94449e43be7c284e72536fd225093e842af. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4CoLGUVyDjmfdoJHkHk4J6.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4CoLGUVyDjmfdoJHkHk4J6.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03ec6214a7fa97f325ecf4a859154507b3e91094ee4afe89a3c3f4dbd0443892. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1B2yZqb448ONYhzdufnesp.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1B2yZqb448ONYhzdufnesp.