1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0x0fca01fc0e651d715c811bce25537eedbc93693fdbf9a21527694921d6334f18. 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/258d1cdd-3b67-4715-b701-c57ac2152180.json and https://artists.proofprofile.net/proofs/artist/258d1cdd-3b67-4715-b701-c57ac2152180.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb36fba6efcafacf7692a87919fc6a268a09933651f0a893c1be5c5a4c0d441. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRH2T2000002.
Ai Que Saudade (feat. Edy Britto & Samuel)
Ai Que Saudade (feat. Edy Britto e Samuel)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5354ec3283fa7431d59099e1822a99d198ee21689c51caae52a76bc99af9ec84. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXOXJ2100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4b133e7e043a2dcf93c09e19d50742e6659ef3f8fb00ad7ff53898fa59c57d3. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZEQU2204521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb6f963f0c0f73cf4c2b11f2a939e7b9ef62f026f940cf8c55cff57e404de38d. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZEQU2204522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eebafea416e754d2b58d84cb41b918a1bc7d2186e43f2ec830803ee08edfbb8. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZEQU2204523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2768bc5f67a4e5fec95392265f1bfb068953a5947699abc3d09c75b0f9f5c295. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:58:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZEQU2204525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf49df834a9c3630078715d57e1f8aa6cc7c09f9d03cc398b02a3ab7b20250851. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZEQU2204526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc74f234397225eeec16145013d12aa842f0ec50476ba7de9d6be81cc74fd1336. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:34:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZEQU2204527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35820484e937bc81ecf536086f7c2bd1438b9caf512ef51c667722529ccf3338. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:33:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZEQU2204528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3d4e7fbdbed51950c5d53fab0a4478a62349ac53401aa72997a5fc64232b8eb. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZEQU2204529.
Classicos Sertanejo Vol.1 [Ao Vivo em Goiãnia]
Medley: Eu Só Penso em Você / Te Quero pra Mim / MInha Estrela Perdida
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76215571ee42cec5fdff971e301af2d65b24edaa15412c1bfc8d88de58ef2103. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ESA112429456.
Medley: Do Outro Lado da Cidade / Beijinho Doce / Assino Com X
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7c3725d03c0c1eb41e84a30ec917564b411bc2a4493a5f527562dceae19cc7b. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ESA112429457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdb478bc0bc8b78873b919b01f0b7fdc6f43e2928b8b4c0af88af4421dd2aecc. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXOXO2200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4147088b82286ab6a12b1f78407a1e7c8e62910ddd9c9c6b52510a9da0219d2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BCX5C2500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4147088b82286ab6a12b1f78407a1e7c8e62910ddd9c9c6b52510a9da0219d2. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BCX5C2500001.
Se Não Tivesse Ido / Vê Se Volta Comigo - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f7a846860102826e092a222973e1f3fd005011ece360d0b750050ad8c1ba1bb. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BCX5C2500005.
Alô / Frio Da Madrugada / Jogado Na Rua - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd68617acd395cbb925d5116a78fc5731e23c047315b0f2be82fcced66ee55ad. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BCX5C2500011.
Estrela De Ouro / Toalha Branca - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3178e0cab9ceb2e3055082ee48b1b9f233397c8545dde8f8a8cba480a841c7b4. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BCX5C2500013.
Sublime Renúncia / Telefone Mais - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cf57d9dcd9c10c24222a573caccd9f3bbfa0e375fb059d1d5e7c845e7a8f639. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BCX5C2500015.
Fruto Especial / Dama De Vermelho - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e77d15fe6eb978646b3e1bdf9532bf21f27c1eea7661d0b539affc501e12c9. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BCX5C2500025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a97da7ff4deadb787b0e7ef3d3dc2cc2d2cbab5ac9d6cc11215b957f74bcf34. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BCX5C2500027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf082a1553d6ba488688416a8ba5006a5aced4410ae55b2140d7c654e5d3b05a1. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BCX5C2500029.