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 0x68e4e9fa49c537dd1158469b1b1a8d4afe1d9b0cd3ceffc1d16b499842347777. 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/11b3516b-ce6f-4cbd-ab88-f95d3c60033a.json and https://artists.proofprofile.net/proofs/artist/11b3516b-ce6f-4cbd-ab88-f95d3c60033a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xcc4e59ef4ec5e0543b4d68bf26827c55c4364b2287afba3bbac9b5542f42587f","isrc":"BRMCA8000056","name":"Roda Da Fortuna","registered_at":"2026-06-28T19:20:05Z","spotify_id":"4eiApMtDH0P1qXYp9TaGhY","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 0xcc4e59ef4ec5e0543b4d68bf26827c55c4364b2287afba3bbac9b5542f42587f. 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/4eiApMtDH0P1qXYp9TaGhY.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/4eiApMtDH0P1qXYp9TaGhY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33108570f983f831dd0e9ed1cbf0c799abf3f7064a6082d204098643a96d2735. 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/2cTiFokFI8R6AQVbQH789x.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/2cTiFokFI8R6AQVbQH789x.
Maria Fumaça - Rumo À Estação do Par Ou Ímpar - Ao Vivo
Mistérios do Bule Monstro (Brincando Na Praça Dos Enforcados)
Moska Apresenta Zoombido: Kleiton & Kledir
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb88e53d1302df6ddc4bd6465466ad03b1dd8f0a3504b7b1913ff5c361b75dd. 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/5MSvRQmHQIGDFmlSBb2EUf.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/5MSvRQmHQIGDFmlSBb2EUf.
A Tribute To The Beatles '69, Vol. 2: O Outro Lado da Abbey Road
{"copyright_id":"0xcc1e10020186d04ae571abeb3b7f5b8a5552a0b33bbbc6d87147ef359ba4c7cf","isrc":"BXKBP2400013","name":"Paz e Amor","registered_at":"2026-06-25T22:16:05Z","spotify_id":"5lBpVTTAJME76ueHGtaKTO","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc1e10020186d04ae571abeb3b7f5b8a5552a0b33bbbc6d87147ef359ba4c7cf. 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/5lBpVTTAJME76ueHGtaKTO.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/5lBpVTTAJME76ueHGtaKTO.
{"copyright_id":"0x0b07a31df72e5e7a0dc1b3f259968c6426ca7b618f4c87dc4f83a67fd997419b","isrc":"BRSGL8500053","name":"Um Certo Capitão Rodrigo","registered_at":"2026-06-23T18:09:21Z","spotify_id":"66ULOYY1yFo1ZZpQjmfYbw","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b07a31df72e5e7a0dc1b3f259968c6426ca7b618f4c87dc4f83a67fd997419b. 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/66ULOYY1yFo1ZZpQjmfYbw.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/66ULOYY1yFo1ZZpQjmfYbw.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f5e001433be7db064c640b0f03186d48b14d14ba54235e38f47bf5001b59e6a. 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/0SwgFumocZxoMOOMe8kf7S.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/0SwgFumocZxoMOOMe8kf7S.
O Sonho, a Vida, a Roda Viva! 50 Anos (ao Vivo)
{"copyright_id":"0xc7b954b251ed8413c1b0481dea73038cbbeb4e4706c637b99478dd8012f30f60","isrc":"BRMUD1700064","name":"Vira Virou - Ao Vivo","registered_at":"2026-06-21T09:27:30Z","spotify_id":"1VyEKZoai4LmMDOwrZ6lyb","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7b954b251ed8413c1b0481dea73038cbbeb4e4706c637b99478dd8012f30f60. 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/1VyEKZoai4LmMDOwrZ6lyb.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/1VyEKZoai4LmMDOwrZ6lyb.