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 0x071a82eb20a823b321ddbdcdf4b7437511cb5e667eb35b967c5ef0033acae084. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5512afdf-4d4c-4ca9-aa88-01a48811b0fd.json and https://artists.proofprofile.net/proofs/artist/5512afdf-4d4c-4ca9-aa88-01a48811b0fd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xa7d41435c09fddeb3feebdface774fcb54f4df647398b236a0ae496781103808","isrc":"BRCMP0301370","name":"Segura na Mão de Deus","registered_at":"2026-06-27T08:00:25Z","spotify_id":"1YFEEhlJbOo2rM0mzwICso","type":"track"}
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 0xa7d41435c09fddeb3feebdface774fcb54f4df647398b236a0ae496781103808. 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/1YFEEhlJbOo2rM0mzwICso.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/1YFEEhlJbOo2rM0mzwICso.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23b32aa4463b2a4313675a6556b6426dc161f7e920a594438c660a4354c6cb94. 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/2iBorKdJpKrpHN1f9L5pGe.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/2iBorKdJpKrpHN1f9L5pGe.
{"copyright_id":"0x162089941e8a2c32eab5cd32ea11021fcc516003dced8e24e41ba4194b5c0b0e","isrc":"BRCMP0000395","name":"Louvado Seja Meu Senhor","registered_at":"2026-06-07T08:13:14Z","spotify_id":"7IO9dPRhL8wMkmNhL3uAvh","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x162089941e8a2c32eab5cd32ea11021fcc516003dced8e24e41ba4194b5c0b0e. 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/7IO9dPRhL8wMkmNhL3uAvh.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/7IO9dPRhL8wMkmNhL3uAvh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf852d22675528438cea49fd7a8ba66b84e08212ddc8982a70a16f777f440fd1c. 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/7ow50o909RZU3z3oma5zTj.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/7ow50o909RZU3z3oma5zTj.
{"copyright_id":"0xa95b07117e6c3af4d8b0496e9c29c7c23daf5c53039836dbf00224540b0b2ce7","isrc":"BRCMP0301374","name":"Boa Noite, Meu Pai","registered_at":"2026-06-20T00:36:43Z","spotify_id":"3LtaRq4FlPfenpMnPHC8WY","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa95b07117e6c3af4d8b0496e9c29c7c23daf5c53039836dbf00224540b0b2ce7. 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/3LtaRq4FlPfenpMnPHC8WY.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/3LtaRq4FlPfenpMnPHC8WY.
{"copyright_id":"0xed05ee7fbc7f794337fdd4f9008b7e64b074a9ac927b6b08f778392ebbbe8ac9","isrc":"BRCMP0301375","name":"Senhor Meu Deus","registered_at":"2026-06-27T07:48:34Z","spotify_id":"2uEwbMjJIKE60k82S00Gdq","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed05ee7fbc7f794337fdd4f9008b7e64b074a9ac927b6b08f778392ebbbe8ac9. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2uEwbMjJIKE60k82S00Gdq.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/2uEwbMjJIKE60k82S00Gdq.
{"copyright_id":"0xa01b9b3d3756b7006f9b2632f3cfcb8fffc5963d0dcc8d7873864be63be3977e","isrc":"BRCMP0301376","name":"Louvai Deus","registered_at":"2026-06-23T08:35:41Z","spotify_id":"5jCfobtUhlt6ILYHS21o3F","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa01b9b3d3756b7006f9b2632f3cfcb8fffc5963d0dcc8d7873864be63be3977e. 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/5jCfobtUhlt6ILYHS21o3F.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/5jCfobtUhlt6ILYHS21o3F.
{"copyright_id":"0xf242c2f0ddb33c5cdabf3799c9fef62eaf3c23f6235d77b44db7487f595fcabf","isrc":"BRCMP0301377","name":"Dia e Noite","registered_at":"2026-06-27T07:48:22Z","spotify_id":"4WhFtwOofpUYTqft26p0sF","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf242c2f0ddb33c5cdabf3799c9fef62eaf3c23f6235d77b44db7487f595fcabf. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4WhFtwOofpUYTqft26p0sF.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/4WhFtwOofpUYTqft26p0sF.
{"copyright_id":"0x290afd6b88003a1571ecd9c02aecef011f6f0b22172e9b10090f35146ff30660","isrc":"BRCMP0300812","name":"Nossa Senhora do Caminho","registered_at":"2026-06-10T05:13:29Z","spotify_id":"30y8TSihEEjRGgogMkntS6","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x290afd6b88003a1571ecd9c02aecef011f6f0b22172e9b10090f35146ff30660. 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/30y8TSihEEjRGgogMkntS6.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/30y8TSihEEjRGgogMkntS6.
{"copyright_id":"0x2df95ad1dd9adfcb32a7362d9e837d54ba7cae2752e096702afda9de5f16865a","isrc":"BRCMP0301368","name":"Hosana Hey","registered_at":"2026-06-18T03:08:09Z","spotify_id":"5sCT74vA8hWjjgdXtvmdyq","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2df95ad1dd9adfcb32a7362d9e837d54ba7cae2752e096702afda9de5f16865a. 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/5sCT74vA8hWjjgdXtvmdyq.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/5sCT74vA8hWjjgdXtvmdyq.
{"copyright_id":"0x53db1a2c78dc275ef9a2a348d9b57a8cf29ef3f03a364bf8cd78b4540944a8df","isrc":"BRCMP0000402","name":"Os Grãos Que Formam a Espiga","registered_at":"2026-06-20T08:27:31Z","spotify_id":"34ldGF1auJuuYRKE6ikyF9","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53db1a2c78dc275ef9a2a348d9b57a8cf29ef3f03a364bf8cd78b4540944a8df. 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/34ldGF1auJuuYRKE6ikyF9.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/34ldGF1auJuuYRKE6ikyF9.
{"copyright_id":"0x7b4be47102dc2800342eb452ea7ef14858c8ea2e6cd6faeaab2dd3cd7df52a4b","isrc":"BRCMP0301378","name":"Senhor Se Tu Me Chamas","registered_at":"2026-06-11T12:41:52Z","spotify_id":"7dyiTKuCAZO9IyLBqOHcWS","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b4be47102dc2800342eb452ea7ef14858c8ea2e6cd6faeaab2dd3cd7df52a4b. 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/7dyiTKuCAZO9IyLBqOHcWS.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/7dyiTKuCAZO9IyLBqOHcWS.
{"copyright_id":"0xeffe1539fa3be5e780aaf5de4e23955156a611031561eee24858b1b5276c0cde","isrc":"BRCMP9900448","name":"Pregão Quaresmal","registered_at":"2026-06-21T05:55:22Z","spotify_id":"1Ix3ErHtMhGh7ep2FOSFDv","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeffe1539fa3be5e780aaf5de4e23955156a611031561eee24858b1b5276c0cde. 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/1Ix3ErHtMhGh7ep2FOSFDv.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/1Ix3ErHtMhGh7ep2FOSFDv.