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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e4f8bc69850b32c0d60ae4e08e6eaee006590b50e4347ceed4776873519cbeb. 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/96c6f559-1793-4357-aa0f-530a7e923eb6.json and https://artists.proofprofile.net/proofs/artist/96c6f559-1793-4357-aa0f-530a7e923eb6.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f19f45f43fa04aab0acbc5dcef7bb83c8c50632a3f27383060dd53af2f941e4. 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/QZNW72366088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f19f45f43fa04aab0acbc5dcef7bb83c8c50632a3f27383060dd53af2f941e4. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T10:24:04Z), 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/QZNW72366088.
Divisa de fogo, Quando Ele toca, A carruagem de fogo - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcae11c405d4cac95279ce02c4aac64f8f4df4306f55be84d71aabe9a9b38b6e. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZNW72379922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39a17cb19c675e7d288930915423a681bb8e0b763aa2752634833c59a6660454. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/BRMKP1000515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b500ab2a4de575ec696dde46aaf44150ca522a81d845d170e95cb940a0a92b3. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/BRMKP1000526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f52f48c9366829c6cca492cb61ecb117b0bb90fbc63bd3a3cdfd9515c54a36. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/BRMKP1000518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47fed0a276ad4675b3a9633b0fa97d400b68765974dca088b27620824f645b68. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/BRMKP1200093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d1bbdca3ff13036d21a7340c06b2db3155ac7cbf9e5594d6610b15a7e9b901d. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/BRMKP1400162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6060b0221f3b16a820511eaa26b865c8f456ce738935152141955c23547cd1c7. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/BRMKP1400164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0cbeb2bfe31bb2b416b12bf3532fab7de2d631114be22336af1e34cd45cc6d3. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BRMKP1600022.
Medley - Divisa de Fogo / Jesus Cavaleiro do Céu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x410e6f76b256a6cb9d6b04a561c8939897e7a20dd90c5407ee378b3bb2687d83. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/BRMKP1600023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9f8a7512a07b7d0bc17105d4a38f01f4b246681dc8f00a5fdc03430ed042d02. 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/BRMKP1600024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd99664253343ea42a4857c4b8511e15122b654d8a28b785648da00161a5f29f. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/BRMKP1600028.
Medley - De Joelhos / Em Fervente Oração
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x634fed9e86110a8e02c52cd55a3b9623acc7908b50848d601ec0af8f02057bd5. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/BRMKP1600033.
Por Favor, Não Pare - Incidental: Segura na Mão de Deus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68a5eb23e1eaa79196ecec57bbba0c159e911a879c901a5dd2439113903f6e4c. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/BRMKP1700275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa13f3dd36c1269c261ed602bb9f0865e3ee3f99cabc2cfb208b887ef83f30dfb. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/BRMKP1700276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba865e3525d84e1b8262a2c89f26bceed014bbd4ba8c4e202e68df44dfeb9111. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/BRMKP1700425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x548da52d0f0a3f58e4bb43a75754aefa4e4abb407c3752790c6db5ec0a9b7b6e. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/BRMKP1801476.
Basta uma Palavra Para Mudar - Trilha Sonora do Filme
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7efd89e64b49511d23ebd870134c6bc4da4f99c1da5803f8ee09478dbf29e04. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/BRMKP0900332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a83378b926c6c88efaca32645d0f4b6561223a239ccb828b165e7c7798b13fb. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BRMKP0900333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48ac3cf4ae378f23699057da46e4983c61a9d4d0dfec76213135a2895585f3ef. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BRMKP1700551.