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 0x46f1424864ad0b12004aa190e3de48c146e5b8a63375a7dba577627e0fd9e913. 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/c795cd5e-3b88-4dfe-99df-45e6ad7b3bd3.json and https://artists.proofprofile.net/proofs/artist/c795cd5e-3b88-4dfe-99df-45e6ad7b3bd3.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 0x35b5f8b297428ffb8e01d05a1822d490ffccce373ce461be6bec45eff7b1b3b8. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BRVLS9300598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca512905b94eb337aca8d3c89971724f150d208d1c0110ec2dbb0a18bc9c18d1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BRRGE9201505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x886193741464c3fcde55df5c2630defe8298f0d71f88114cac56c79b66e95972. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BRRGE9201506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x019128b11a37d2ea1e8db92afed18854ee486ecee0b2dd7cceb4084196929467. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/BRRGE9201508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3e39d50fb68b86d429a3dfeae25fb1ce8b5a55f960f87102c8a8b443b6b5f60. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BRRGE9201509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf354394b2c7533f155ec7d9eedd5b76b3e0762c5cc7a403b1f3a657ecc677318. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BRRGE9201510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c692dd80ff617ecdb67bcf7f3e3a4ac0d435318400ec518d9ac2b6d731041ab. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BRRGE9201511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x372e416364b7170ce03e7ac80cfd1d0985917fc31c39b1021924448183bfb7c2. 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/BRRGE9201512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20d9af10a017d9dd2f26972fdda8f9a0a76a8815a3222250059f2ded7da47bac. 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/BRRGE9201514.
Camarão Que Dorme a Onda Leva (feat. Zeca Pagodinho)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d4863da9425fc0664a3f3908b7bcbb9d8e247c1362d0cc9ce96517d71e102db. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BRBMG8300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b2e29f9cae8ef5621f1c2e10bbefe356320dc949dbeda7f9ad9277c61daf83a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BRBMG8400152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4b081b01362b6e1f993627c4effbc70fc65e121737e1cc5e2a911b87581064c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BRSGL9200051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda45934c5fd278cc82ceac72834404f3df3696ea0c3c49c6e1428404e6034d30. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BRSGL8600044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb8a32df6a1f8e19f71cede88c18d64149f58c58a3d3ca76b59049041c9c0631. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BRBMG8600121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a83c073e333e23addc4a7dc95b2d52c323a030cea693003df50a6c82455a9c3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BRBMG8600088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fc5b8c3875e58788e3a66d4d775905daef49c0b52bbb569ba1489be86d6d45c. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T10:27:32Z), 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/BRBMG9010104.
Três Palavras/Perd¦o E Paz/Canto Pra N¦o Você Chorar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd57fb30ae12ca81ab1dae8cfe98d9ff2cf624b421352115c2f5afe212ddaaa04. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BRBMG9009991.
Leviana / O Meu Amor Tem Preço / Contentamento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51eaf2e7e76a179121ff9dd06e93d912521164737a8a263eeb6be9057b9bedb8. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BRBMG9009943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43c43a50f5e2bd7f1a0cbd862b6a5c5e80965b151a27bce2c914fe7f54871444. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BRBMG9010193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda80a52ae528c1736fe226480b7b7c9e21bf118d1da1699469b39d068d39e485. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BRBMG9010195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c8b47d2078d7a1acde81f0fbb436db99cc55e69b106d5b1cb69ded296088039. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BRBMG8901680.
Façamos (Vamos Amar) (Let's Do It (Let's Fall In Love))
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69ac764e56ae9a4c03f559b5a7232ca5e9330a9f77a5dacbe2edeadf8e40e3e6. 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/BRMPU0400052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5755537256ec9edccf359597b167ef1187f6df47798f4b809b03d7b6212191e5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BRBMG8901568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b6a7cd03f728d937faac0304fae366dce63f34042822639cc8e07e2217ae373. 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/BRJBQ0900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1952931641d277850100d2db4442064c2d3be734daaf4456b55b6292a0d66466. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BRMCA8000156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72986acb24ff8258f252b6243b6fe0b71f7bcd2462018e8150d0c532a5ff1d9f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BRBMG9800697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa35afa9493db1482363ce255501c20489044564d4bd0376076300452f38e8635. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BRMCA7900150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x889633471fd2cdc48574c4565ba4ed02b2f5bf0ed26374ce60e4edf9848e06c6. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BREMI9800617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xead88e94a59aeaccc3dfa104df7d79eb05921b883e8f22ada2ab696e68afb3f7. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BRPGD8400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eb408b5193ddd00da129740a2189960f8ba4b88872103f441688e42cc2ee7bf. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USAR19500193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5309e2492aecf4f97f7f805c317b645c25b0c2d0353a006e06fb0b55329d0ca6. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BRBMG9900493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0bc099600ac03f11d484b15114d64d2f5ae20cd8210819a74089193b71059bf. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BRROF0700040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb72f5b0ac9e2dab4e3cfc4315689d2c8cf89480f1a8306255152f9e2fcb25ed. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BRROF0700042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d14a4b1b29042aebc1b9dedfaffc62a502e4fccd540444ccc4d798e472cfb1. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BRVLS9300552.
Sambas Enredo de Todos Os Tempos Por Mestre Marçal