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 0x19c1dd204c4da723c4dd85e3e2db05989f6b598870f6aa527b94b16facad80b2. 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/fea652be-cbd7-4484-8597-5e83131c8e7c.json and https://artists.proofprofile.net/proofs/artist/fea652be-cbd7-4484-8597-5e83131c8e7c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Meu reino encantado (Participação especial de José Camillo)
{"copyright_id":"0x7977387c14a9669235b764e59aaa5a72fde9398b23d0d3c2dfa9a06097d2f435","isrc":"BRWMB0001000","name":"Meu reino encantado (Participação especial de José Camillo)","registered_at":"2026-06-04T07:01:05Z","spotify_id":"1zG8GtQ2xSNFvqz2eIfH1j","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 0x7977387c14a9669235b764e59aaa5a72fde9398b23d0d3c2dfa9a06097d2f435. 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/1zG8GtQ2xSNFvqz2eIfH1j.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/1zG8GtQ2xSNFvqz2eIfH1j.
Encanto da natureza (Participação especial de José Camillo)
{"copyright_id":"0xcca17405cc301294c1afce0c1c5d63fce4ccff5c9f669d39145ad8ba1eab3a90","isrc":"BRWMB0300344","name":"Encanto da natureza (Participação especial de José Camillo)","registered_at":"2026-06-04T11:03:34Z","spotify_id":"1N2Szhl4iSMmT18resTXtT","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcca17405cc301294c1afce0c1c5d63fce4ccff5c9f669d39145ad8ba1eab3a90. 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/1N2Szhl4iSMmT18resTXtT.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/1N2Szhl4iSMmT18resTXtT.
Mundo velho (Participação especial de José Camillo)
{"copyright_id":"0x98d563795e8b83eae71bb6dfe211a7710bb07a619248fe0775b33c3abc7bd414","isrc":"BRWMB0300345","name":"Mundo velho (Participação especial de José Camillo)","registered_at":"2026-06-04T14:56:13Z","spotify_id":"2Zam4EhKG0doRCK56bFCKT","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98d563795e8b83eae71bb6dfe211a7710bb07a619248fe0775b33c3abc7bd414. 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/2Zam4EhKG0doRCK56bFCKT.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/2Zam4EhKG0doRCK56bFCKT.
Rolinha cabocla (Participação especial de José Camillo)
{"copyright_id":"0x09e4b9a42c864ffeadcf5b7f3a925c2c3f11f20f59b60bb0fe3a869faf7b0079","isrc":"BRWMB0300348","name":"Rolinha cabocla (Participação especial de José Camillo)","registered_at":"2026-06-05T07:28:22Z","spotify_id":"4FlpwDtWqJhHZ2VxPnWn9K","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09e4b9a42c864ffeadcf5b7f3a925c2c3f11f20f59b60bb0fe3a869faf7b0079. 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/4FlpwDtWqJhHZ2VxPnWn9K.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/4FlpwDtWqJhHZ2VxPnWn9K.
Travessia do Araguaia (Participação especial de José Camillo)
{"copyright_id":"0x9648c0034e8e1573732670501d5488d66935ff141fc22df96b0fb1d9e5f6f4f7","isrc":"BRWMB0300356","name":"Travessia do Araguaia (Participação especial de José Camillo)","registered_at":"2026-06-05T16:56:21Z","spotify_id":"0gQ4uKS18kRSpYMzteTcxs","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9648c0034e8e1573732670501d5488d66935ff141fc22df96b0fb1d9e5f6f4f7. 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/0gQ4uKS18kRSpYMzteTcxs.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/0gQ4uKS18kRSpYMzteTcxs.
Cabelo loiro (Participação especial de José Camillo)
{"copyright_id":"0x6bbb0084f83711e68f802a6e94ca3d4aa96b1ed5f2f7fb58d2965065e8e2c2c2","isrc":"BRWMB0300353","name":"Cabelo loiro (Participação especial de José Camillo)","registered_at":"2026-06-05T21:33:25Z","spotify_id":"61XvEJ8AyW87Br4jd2kg6u","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bbb0084f83711e68f802a6e94ca3d4aa96b1ed5f2f7fb58d2965065e8e2c2c2. 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/61XvEJ8AyW87Br4jd2kg6u.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/61XvEJ8AyW87Br4jd2kg6u.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eaeef17d5189e06fa1bfc2b951c3f0d3ea98670b36a6395579def1f3d80e875. 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/69RPY71Zlt9biQcKrOxA9z.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/69RPY71Zlt9biQcKrOxA9z.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed669662fb767be19015f6755bca45e62a2ff2b5da78870cf49913092845ea1c. 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/29wsClx4gzXrcvpdkSRSD6.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/29wsClx4gzXrcvpdkSRSD6.
{"copyright_id":"0xba4bda3d93ca8ea2634fc81be812fca0f4d582528380e3a8ab12a5df2f38b42c","isrc":"BRP5I2200008","name":"Boiadeiro Errante","registered_at":"2026-06-09T17:45:12Z","spotify_id":"2dgaTvQTIq2kWj0ltDcJkP","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba4bda3d93ca8ea2634fc81be812fca0f4d582528380e3a8ab12a5df2f38b42c. 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/2dgaTvQTIq2kWj0ltDcJkP.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/2dgaTvQTIq2kWj0ltDcJkP.
{"copyright_id":"0xf0816db8499296ad42c26ee7c84ef6495cf46722da995f5c3feb09fe6d87811d","isrc":"BRP5I2200003","name":"O Ipê e o Prisioneiro","registered_at":"2026-06-10T17:38:03Z","spotify_id":"4F4LofWlFdFQeKoOW6AR2I","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0816db8499296ad42c26ee7c84ef6495cf46722da995f5c3feb09fe6d87811d. 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/4F4LofWlFdFQeKoOW6AR2I.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/4F4LofWlFdFQeKoOW6AR2I.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93c45a1143e3e33268e767a943b556d30e0c7caee3117f19af21b1f82241f684. 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/4jhCKtxrRU3lVipaIT42A4.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/4jhCKtxrRU3lVipaIT42A4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce61672d5a7919a0933ba23d22c7b450ff84983e5e439eed4a5cc479760d0bf5. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1qzkZHVnoYouS6AAsZ3Y3Q.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/1qzkZHVnoYouS6AAsZ3Y3Q.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cb8a0b460a191fd843c4644d84345f7298c26a973d14df06353309a88117871. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1NgGRtsZu8efBzlLX7n0rU.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/1NgGRtsZu8efBzlLX7n0rU.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86ee2946b4c183c21692b53aa1b7e72a9ccd148a6aef8105d3fa0c6fe56dd51b. 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/0bTiq0LJnGqnsUyf8byxP9.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/0bTiq0LJnGqnsUyf8byxP9.
{"copyright_id":"0xbcb7c9314d3f8eed6b99ff32aa4fde9eab3b9d2b6a6b20779625e0c031f7a985","isrc":"BRP5I2200014","name":"Meu Reino Encantado","registered_at":"2026-06-10T17:49:15Z","spotify_id":"3s4TNtWkA6yRLzaaYW2abu","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcb7c9314d3f8eed6b99ff32aa4fde9eab3b9d2b6a6b20779625e0c031f7a985. 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/3s4TNtWkA6yRLzaaYW2abu.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/3s4TNtWkA6yRLzaaYW2abu.
{"copyright_id":"0xc3dffaf6d7e0aeeb18132c660670a825493d480526db0113943489badd47fbfa","isrc":"BRP5I2200022","name":"Herói Sem Medalha","registered_at":"2026-06-09T17:41:28Z","spotify_id":"6ZUQOZgoAObZ6auWt0HjzB","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3dffaf6d7e0aeeb18132c660670a825493d480526db0113943489badd47fbfa. 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/6ZUQOZgoAObZ6auWt0HjzB.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/6ZUQOZgoAObZ6auWt0HjzB.
{"copyright_id":"0xdc250e4dd8a061fda3f187e9a7cb9b98fd043bd8e7f3dce3a9cd19e44c192fee","isrc":"BRP5I2200009","name":"Viola Cabocla","registered_at":"2026-06-19T11:31:57Z","spotify_id":"5ZtKY4j1V8oXTRxHVZXYP1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc250e4dd8a061fda3f187e9a7cb9b98fd043bd8e7f3dce3a9cd19e44c192fee. 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/5ZtKY4j1V8oXTRxHVZXYP1.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/5ZtKY4j1V8oXTRxHVZXYP1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e71366c038b35fcecf9e299bdde701b457ccb8491cb8e658c6057e6f4d07c60. 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/7LE8S1eTf4Ae8fTNPQ7Fuu.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/7LE8S1eTf4Ae8fTNPQ7Fuu.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b3d4462c4630ab27082be356791901b684a263760a13f63a351ee1907161b33. 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/2s6pbNGUx6ORnoDH4XobK3.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/2s6pbNGUx6ORnoDH4XobK3.
{"copyright_id":"0x931fb333da9d1e19afd0d160bd2ad3be15e2e76e17bd31e093f3cd2a9cbfc4a6","isrc":"BRP5I2200006","name":"Velha Porteira","registered_at":"2026-06-18T16:27:33Z","spotify_id":"1qdasCU5XLzSfWbPDlTNLA","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x931fb333da9d1e19afd0d160bd2ad3be15e2e76e17bd31e093f3cd2a9cbfc4a6. 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/1qdasCU5XLzSfWbPDlTNLA.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/1qdasCU5XLzSfWbPDlTNLA.