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 0xc4a3514b5d1b81fb1be8677c3230f38beebec932ec0bc03967d39abd871b3a43. 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/4c80ae70-9be7-4f4d-b087-acf5eb422db1.json and https://artists.proofprofile.net/proofs/artist/4c80ae70-9be7-4f4d-b087-acf5eb422db1.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 0xa197e0dc3be902534c6b32ab7df2d9b6746b6ac47fc3e616964a5501c5e4f66a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5dWaFGPWsdpfgyHjKH6PDR.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/5dWaFGPWsdpfgyHjKH6PDR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f7856ff606db13afe29a33ef34893faa095c4938cb91d2e819e7a8968e9e9e3. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1Tnx3IBRGZvAaUc6PZPVmS.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/1Tnx3IBRGZvAaUc6PZPVmS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6855f017520d4abbfff96c745a52a9e71440229324b488841c9b51d38cd7d4cd. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/46PjJ41I5VV9SebS8MJ3zC.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/46PjJ41I5VV9SebS8MJ3zC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0271939d76c4dda4be382b6d2ba62919257b9f553324698c9ee34f6ac86aeff. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/52AZwEy4Vot4eUEQcn6IlI.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/52AZwEy4Vot4eUEQcn6IlI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83699a7a85495755150863283e9b03afb3fb70169480b19743a42e1e097f2eb3. 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/6C42b2ltJkVUq9vEUUqpBZ.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/6C42b2ltJkVUq9vEUUqpBZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa584125b3b9651664757f94a9ed869e244eb7ac0ca53f3b1bc75bb533b538355. 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/4IPnFWw8kNJ81R7qO3hq1L.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/4IPnFWw8kNJ81R7qO3hq1L.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba787509c1634036c88076e6c784d4072a4b51d8a10ddafbbe691d2af597fd96. 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/2dWrcwZs40HNUoxidnVNPw.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/2dWrcwZs40HNUoxidnVNPw.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ac5b2874b5d63bfe6939c1cc850b3257b9069e41e8480044eaeebb6da641f66. 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/5iyySXOyVZo3ybmUwuTe7V.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/5iyySXOyVZo3ybmUwuTe7V.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b1df3102d5af558f19cd753869aef1d6f0ae22e1e8dfd61aebcf93a5d646ae9. 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/28zyUKinWVS55Xln4vFDXP.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/28zyUKinWVS55Xln4vFDXP.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83699a7a85495755150863283e9b03afb3fb70169480b19743a42e1e097f2eb3. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4wqr3fd4tEdbXlsOb191Fi.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/4wqr3fd4tEdbXlsOb191Fi.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6992dcb96e6e6bb86c88a6b9118e13afc1ebd55c118744eb6e9c528ec3412017. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4VcAPJ5UltDo4sHfDIVzsZ.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/4VcAPJ5UltDo4sHfDIVzsZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83699a7a85495755150863283e9b03afb3fb70169480b19743a42e1e097f2eb3. 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/2g8B3wP5EZwbQGpaIBxQYR.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/2g8B3wP5EZwbQGpaIBxQYR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b0a523a0b2c2c100fe4d84e679cb28c3f72f2b06a51dda3dfcd1d13d21943e3. 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/1wsUZmJVQbNAlcXOH0Tqo5.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/1wsUZmJVQbNAlcXOH0Tqo5.
Say Nothing - Minsky Rock Remix - Instrumental
Say Nothing - Wrongtom Dub - Instrumental