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 0x2af17e36fe18c8aa5edc751f026df9a297c68b17f5b0fc9012b2c18a392e31a5. 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/e60f0a88-e37a-4fe1-ba8b-567bf64665cb.json and https://artists.proofprofile.net/proofs/artist/e60f0a88-e37a-4fe1-ba8b-567bf64665cb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Songhai Blues: Homage To Ali Farka Touré
White Crocodile Blues (A Song for M) [Instrumental]
White Crocodile Blues (A song for M) (Instrumental)
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 0x0f0589efc6de660beb4b81ece6b0b09b5ace66feee363d404bde6f37b914f7ef. 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/7JVy8GZ6lVPGMAscQEEAFu.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/7JVy8GZ6lVPGMAscQEEAFu.
{"copyright_id":"0x7490619e74bba6aca531cb4b128c432ebad5acf8e8bed8cec5ceb45584ed6076","isrc":"DEE351411746","name":"Male Bano","registered_at":"2026-06-29T20:22:07Z","spotify_id":"7LChLmOveuBsURAPUZO0vJ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7490619e74bba6aca531cb4b128c432ebad5acf8e8bed8cec5ceb45584ed6076. 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/7LChLmOveuBsURAPUZO0vJ.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/7LChLmOveuBsURAPUZO0vJ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0259e3db9de754e59ca6da9c995253610b3f7b9c90dc05d0cae83ab9f25e6320. 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/4XuHrXM8ZinA7we8JjVQOn.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/4XuHrXM8ZinA7we8JjVQOn.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e50708f9be742bda84a4cf4b2278a1529277b2f9df82e0d7f0c7927bf29433b. 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/6fsffRETsaMkVTV25salQ4.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/6fsffRETsaMkVTV25salQ4.
Io Capitano (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd0a20abf57c96cebba518c49acdadfda7508cad5d9ede13620650c31689c3d0. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1J4adHlWlkLoG3QH7rLgq1.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/1J4adHlWlkLoG3QH7rLgq1.