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 0xb99cdea2caf62936bf13b6d96307ca31c9f5d6e2adf85b3859b98cb88efc365f. 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/d7a92c7d-f006-4ace-92b5-40e94cbcd483.json and https://artists.proofprofile.net/proofs/artist/d7a92c7d-f006-4ace-92b5-40e94cbcd483.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ao Vivo em Marrocos - Acoustic Sessions (Acústico)
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 0xf1ed98c5789fa04d281b6b95182fbd0789dca95baf5670823ae5553f1e62221f. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/US7VG1591383.
Mais Difícil Que Escrever Macaulay Culkin - Acoustic
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6689db729f2e94c29159ddf64d07467ee90e7b1ff1d7b9d4cb93ad9f873df294. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/US7VG1591384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x635c570f5c6d84a28cb030689f14c0fcb9993b0bb45b62e26caeeb1d14221e49. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/US7VG1591387.
Uyara Torrente (A Banda Mais Bonita da Cidade)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f74d4253336d2434a8fae318ee4253dae1e84b144a461d6881528f48bb81602. 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/US7VG1591388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce6b67694723fe0f25880a38fb3540bbfccef5de8ae3422d3ee540bc99180f08. 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/US7VG1464594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48314786336e426f22b85817dfdbd19fd648e3a808aa5ffafadb00c1aa503452. 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/US7VG1464595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87283f9ff8eddaca949ba380dba8db72928aff836887d9225fce753cd19f42ab. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/US7VG1464596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca5aefe352b843f255c9cbacc017f6c552f0010ff58650063e4f029324a17a26. 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/US7VG1464597.
Mais Difícil Que Escrever Macaulay Culkin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c0203a8ff29ed1a6d01dcc149b74b26a5c51dc74e29795a0ab7da89a1def81c. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/US7VG1464598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0169c565191886e48a9b1ceca9f51c6465397b2877d0686445313d691d5b3ea. 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/US7VG1464599.
Essa Música É Romântica e Assustadora o Suficiente para Te Deixar Confuso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bedfcacd604cb344b33dacb1da50e372346d79a2e58c2ecae6b829a442ccdce. 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/US7VG1464600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9b9e6aa4983e71d22c2520de164657b123dc41e383ed5e2d87819fb00bbd8d2. 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/US7VG1464601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84bcb5dedda8479ccbae7e088a14342f223dd16afb5d0b9b3983c1f1f1496a52. 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/US7VG1464602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08aed67d5aa329bbb884f7d6470171d659b363802f8d369adad786dc3dc24bab. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T10:26:53Z), 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/US7VG1464603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18dd11e606401c070961f1461bfaeac3c67dad73969f4f920693aec2914a1d00. 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/BXAKK1500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04ecb18216913d24a53b10515a7c08564ef26a242342f506a5f9dbcb0bd94a13. 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/BXAKK1600017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x476a51e29eadb4bad982786aea0df4e7876ea0680dac32663185e1f35209bf04. 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/BXAKK1500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x784046c7c8ba57d0c446fb59a2a32fca050ace570f7be72a0731979ad3e4080d. 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/BXAKK1600018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc83f96447afd8fc3bc9562250507295200e29aea649e4d36e18b509149196b8. 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/BXAKK1600019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c700852f0eb57ab60de9536a2b821803031ae0de6b5d9c43df8324a30ca2a8. 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/BXAKK1600020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xced99954f3070e3e4c0b3501ce871871ce69a65df16d9e10efb480f5ce18fec3. 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/BXAKK1600021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5a1d51b4f88434162252242c82efc2efea2deb003516743d727496a4049090d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BXAKK1600022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ce77b914d2bace2e9534abc4dfc3ad137f7a47a07e4cfe615e6ded974daa424. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/BXAKK1600024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e5b4207284c87c55fbd0c1cdabb93ce27ef16a9717c56043f3d400e542a3a69. 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/BXAKK1500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9ded0f22b211a231dca459f4af1266531eaea2574c3293408d0d9cf7583b1f2. 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/BXAKK1500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf49000be462bf573e12ca21874b64b3e0088974cfa370e376998754aa9f2213f. 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/BXAKK1600011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07822c9228e3d52648ec300993eaa9a2fe119ae4329459644a3678821646136b. 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/BXAKK1500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa937298cfdf80a2cb9205400381ef08fc4eeea16ef5d666b90c2412188475add. 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/BXAKK1500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29fb1f3ac1f5802e33dd23be69a27b924ca25746f72a117c2d42eb1809424001. 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/BXAKK1600012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ab194be5680520ea1966aa1f09800e3c13989d129cb11f35e12985f616248d5. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BXAKK1600013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b7e31bd7555dd6d07ed788fd7b2ac0eb7e8743a0dd0ac25f8ff9b36e7eb139c. 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/BXAKK1500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd57293fecfdf0ef1eb81832993c82125ec58b44d6471a469497ffad013961c8e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BXAKK1600014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b492c563ae92629852fbdf8a4d09703487fa2731573dddcff79ddc4e15c5e1e. 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/BXAKK1600015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0154979a04aab0f4b311369b850f819fe51fb564c2a3ddc85f46aa11402f5c9. 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/BXAKK1500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x449d904e274ee7081b85c99610f78c55d5dee03e17619beba1c7c13cbf48924e. Chain 2 (Bitcoin): anchored in block 959138 (2026-07-22T14:10:55Z), 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/BXAKK1600016.
Tudo Que Chega no Fundo do Poço Inevitavelmente Melhora (Acústico)
Tudo Que Chega no Fundo do Poço Inevitavelmente Melhora - Acústico
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf15f6ded1ac10f12841d474d0c31e37c0e964f8d2e398b9b90c372394c29d669. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BXAKK1700014.
Tudo Que Chega no Fundo do Poço Inevitavelmente Melhora
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x484b59104234afaec60d19833379b66e4c49f2d0f46d74d31887ea615ed4a79c. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/BXAKK1700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b18b2b4d34b0da3525b98e8ede40198b84d16194ff6cf73fdc5973c55e0950e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BXAKK1700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc043b235037b9e1775db8e256e39fbd8eecbdcec2ce5be6f11e730f7a61e710a. 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/BXAKK1700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54e947742c3cda8c0fc260bbdc13ff4fcb24c1f2ee8ef6e7c43c974b07cccefb. 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/BXAKK1710001.