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 0x882c9f40c4ba201c72487f8c7da0b2bf3b46ff44d6bfc137cb88961821ef82c4. 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/2bb83524-2552-46d8-860a-2a017e8464e7.json and https://artists.proofprofile.net/proofs/artist/2bb83524-2552-46d8-860a-2a017e8464e7.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 0x06377986526224bd8c903a936411ff9645f8916c878eb5950e0c3fa622483512. 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/4nA2FFZn43ABEujV3NbVSf.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/4nA2FFZn43ABEujV3NbVSf.
Don't Let Me Be Lonely Tonight - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39884536aa68721186f12c79d19c6d78eda3fd452b21aabc8b8f7fc55a1d2b06. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/20R0AlOWGwrY9bZRgGgbtK.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/20R0AlOWGwrY9bZRgGgbtK.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb22ec70e1c5f6969d8eb19ad5bd8ad55de9d1642f7bbd01db0ce84441bc0c56e. 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/6vJ4Z2Hc5Bmm0sdqf9CtTR.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/6vJ4Z2Hc5Bmm0sdqf9CtTR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb22ec70e1c5f6969d8eb19ad5bd8ad55de9d1642f7bbd01db0ce84441bc0c56e. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4PwVKFnUpR2fuSZIqcdSJV.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/4PwVKFnUpR2fuSZIqcdSJV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a789822819851248bb64fd40fa04a9298d1e1c829e02f661f59422df60ec0e. 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/32xJOfdwWkMvfAtQ6ngg8Y.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/32xJOfdwWkMvfAtQ6ngg8Y.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79850cd7c66876d382ef0e44ae225ef79e3b6331fd3a7e0ff058cf1c54a930cc. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6XLDWdV4d2zeX1E0DelFYE.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/6XLDWdV4d2zeX1E0DelFYE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf6bf82e240647289d7a671f66e80ed6e778a5e53d99391d49bf20609c8990d1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0NAX6xxmU6uEnuu7A8PWQM.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/0NAX6xxmU6uEnuu7A8PWQM.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x292b99b830fed86667589d3f684b4c018156c67f969431fc740d8f0113e3995e. 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/40wi75xHZt0ovzbGwB3Bq9.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/40wi75xHZt0ovzbGwB3Bq9.
Get Organized - New Year Resolutions - LoFi and Chill
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fad357c9e250184702fa5dc7e3936c10f2c68a90e14c1ecffbabe9ffc846153. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6kro7NEsVkNQPS3DGvXpiV.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/6kro7NEsVkNQPS3DGvXpiV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fad357c9e250184702fa5dc7e3936c10f2c68a90e14c1ecffbabe9ffc846153. 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/2rE18SjMR66gcN4YPcpfeU.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/2rE18SjMR66gcN4YPcpfeU.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae4795ea7789f6713498c714b6d8ebc3aed0f0f95cf39bb2332e4f2b87c92d84. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7lX8JhZR9MiY4XJArbpBxC.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/7lX8JhZR9MiY4XJArbpBxC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17fe46ed0390bad72cce06c8364550f0ae27c3b367ce451793fb40905ff97037. 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/0y8u0eiEUflm5vIJUbVrNg.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/0y8u0eiEUflm5vIJUbVrNg.