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 0x4fc2d9b175f8c16627ff247c91ad72c03e3c1d989df26917baf2916e0598c121. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5e52ecb8-4157-4b10-b630-c4e566b58073.json and https://artists.proofprofile.net/proofs/artist/5e52ecb8-4157-4b10-b630-c4e566b58073.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xe2aad8f53a338f377ac9dd3648449141355ae649363330b41032b7a8ff53689e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6rvmYF0NavXpMRB2cgXJYf.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/6rvmYF0NavXpMRB2cgXJYf.
Cantar a María (Santuario de la Inmaculada Concepción Cerro San Cristóbal)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24486a9555f8682c282ee8b0999e1a5edad2a14bef3491d4f241b4e4721a669d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4ec97kLFm0skxQgA5wpvTQ.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/4ec97kLFm0skxQgA5wpvTQ.
{"copyright_id":"0xfff81f1c768aa80bc53c7aef1c5f80967fd698099be13dac12f20dd09b80ee3f","isrc":"TCADT1825328","name":"Ave Maria","registered_at":"2026-06-23T16:19:39Z","spotify_id":"1BgTL55riYgYx79FStUp7N","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfff81f1c768aa80bc53c7aef1c5f80967fd698099be13dac12f20dd09b80ee3f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1BgTL55riYgYx79FStUp7N.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/1BgTL55riYgYx79FStUp7N.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64a71f45f4180cbe01e807374b019c2d3a091974ad21c4ae8110a6609de32695. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2fXck7B4SRudpZRRftp7YY.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/2fXck7B4SRudpZRRftp7YY.