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 0xbd6560e3e3740b0b2667b24b61d7fc02064a65abb526373f6c452003defcbfa2. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7aad44e4-169d-4ec6-ac81-8dbe5f5051ed.json and https://artists.proofprofile.net/proofs/artist/7aad44e4-169d-4ec6-ac81-8dbe5f5051ed.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Jairo Pereira No Estúdio Showlivre (Ao Vivo)
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 0x522b159e5bed9084102d24a4435e39f7212a5e87bd8bac8f382eeeea1766d805. 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/BXT7S1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca6729d234733d3898c7b2775a0243039d899ecb20b1feb88feed7a3e36382d0. 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/BXT7S1900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc77bfbd51087fffc1c99979ea2cb2a94ad41798b96170d1adf7a70803450f5d9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BXT7S1900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f645e8e2ca8409aebf53c996168c55db2385ad04c969d44eca863096ef13ebc. 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/BXT7S1900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab376b91ff2b53039126477517abc46b4c39489621327888b43cc4d789e47d16. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BXT7S1900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64942c497410cb38e4179127dc3833103690da72f3f6bc67cf1e5c311dcbf4ae. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/BXT7S1900001.
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 0x470d013e5543d73d3922185d1aed94159d08290ffdf729900b3ee664709d9d40. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T16:46:53Z), 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/BXT7S1900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a75ca538119384cb8239d2a8b5958859b6235b01cd97106c3005e12b841a402. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/BXT7S1900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x630f6e5b0d79269436889de5905ab66d0ed3939634bda31f00c38cde4d90865d. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/BXT7S1900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaa059e533586730a1b046bc9a5262d52b3c69b0194fd464a28459c02ec83980. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/BXT7S1900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c2273a7c14a39d82b311170a806b161cc8fc020f307ea2112cfcb3d71716c47. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/BXT7S1900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf6cbe0fd455d7130dee66944a8cef7f16275652ac6c2a7e86f6b50de44e59a7. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/BXT7S1900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x812f50f7b266f47d401afa755b8486a5919c21bb1a97a851be83040b768eaf2f. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/BXT7S1700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6471fbd783107c708064e134f33aee58725efa9d24623a5566b8a88bac991546. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BXT7S1700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e13c222bb86f6d4a4200b51a7b5543581e838374a6eaf7d1eafdd1042c8a125. 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/BRT2D2400051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dcb9f9ee821e420deab7354b784a6a68fb6d1677b5cf012367ca7ae94b61f87. 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/BRT2D2400054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71d51eda3e8476456c046b761aeeb707f6b2a216312cef33861f45ca399b8ecd. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/BRT2D2400052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf54ac8b2524ffb4558764e28ba512eaa52100bb3a5ea17c2f83bf876739f1ab0. 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/BRT2D2300308.
Daquilo (From House to Disco, DJ Mari Rossi Remix)
Daquilo - From House to Disco, DJ Mari Rossi Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dec46f437b4474b0cd32f4a16b79ce2a5ca578765a791dc0a5a477efbcb4abe. 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/BCD172100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50696854bb4601a8e71e503a12150a24cb2e01808924a088f13b82416e256494. 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/GBKQU1840272.