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 0x2f89328fd16203af1ab04b4fb5f09560af4d3f7659de2fe3ff42124933c1dbab. 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/24ab4ac7-87d7-46bb-998b-b96b37aaedf6.json and https://artists.proofprofile.net/proofs/artist/24ab4ac7-87d7-46bb-998b-b96b37aaedf6.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 0x3a66a44489e3da2be307e404192e5eb872c0e51190847479fb3d7387cd825c02. 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/0trKzDfmo8OjzMYgSDj5Cc.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/0trKzDfmo8OjzMYgSDj5Cc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0107650189494b8d0df3760f85bf8fbb4079ce08ecedad05a99f45ba967e2bea. 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/60ef6MWwRy7fpKL7zjdPVQ.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/60ef6MWwRy7fpKL7zjdPVQ.
{"copyright_id":"0xccd7aee148182356e19cc7d5e72bd3a5a6a9e2e304d982eeb40c2ef6129bc79b","isrc":"UYM122104343","name":"No Me Ames","registered_at":"2026-06-29T06:26:09Z","spotify_id":"3yBnbVpQHklWLMWfIXOFJG","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccd7aee148182356e19cc7d5e72bd3a5a6a9e2e304d982eeb40c2ef6129bc79b. 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/3yBnbVpQHklWLMWfIXOFJG.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/3yBnbVpQHklWLMWfIXOFJG.
Entonces Que Somos / Queria / Le Hace Falta un Beso
Mejor Voy a Avisar / Ella Baja / Ahora Que Te Vas
Una Mas para el Cuardo / Prometiste / Cuidado
{"copyright_id":"0x76c20d94e7f790acbd5cb9df7b8567b34c3b7efd9b328eebd9febefddf8c6377","isrc":"ARC572002426","name":"Poco a Poco","registered_at":"2026-06-25T22:58:25Z","spotify_id":"2Enr4uzwex7DEC0l4gB4SP","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c20d94e7f790acbd5cb9df7b8567b34c3b7efd9b328eebd9febefddf8c6377. 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/2Enr4uzwex7DEC0l4gB4SP.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/2Enr4uzwex7DEC0l4gB4SP.
{"copyright_id":"0x7aa266b9206266867e37ee0e2ca950a80ce3d6f5ba7efefd4b122df448ec062b","isrc":"UYM121806414","name":"Nuestra Casita","registered_at":"2026-06-05T13:08:38Z","spotify_id":"3vVyo2spcDJhepp2vLVbMF","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aa266b9206266867e37ee0e2ca950a80ce3d6f5ba7efefd4b122df448ec062b. 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/3vVyo2spcDJhepp2vLVbMF.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/3vVyo2spcDJhepp2vLVbMF.