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 0x9f3652162612dcfa1e13e6dc13afe8064ecda0484649e6739969810077d81540. 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/4f4112e0-aa1f-472a-a400-538f54548c54.json and https://artists.proofprofile.net/proofs/artist/4f4112e0-aa1f-472a-a400-538f54548c54.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Vou De Táxi (Joe Le Taxi) (feat. Claudinho & Buchecha)
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 0xd99d34f480dfe246ad54de8d38c6d29699baa5cda6f7730a142d4a70a3dd34a5. 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/BRSME9900467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b01971794374018e051b904cc7e715e319d5ec83f2d32e689db05c2540214cf. 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/BRSME9900422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9f6647d281c51d171ce1290b1a4fec44752b62adc8ef94c20a061bb5040c13f. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:43:40Z), 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/BRSME9300496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f34b3385008b7c0b0b97169a2e8cd6cac75b33871cd30a7fa915a7a4b0b3c14. 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/BRSME9200275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa13b3e41bc23030543b6156149d2a83f0cabd7db02b76eb2a4038dbfc4eafed1. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/BRSME9200276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fb297eccbc86a180130ba8337d380cf2b9456cf22596094fcfaf19e5840bfe8. 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/BRSME9200284.
Vinteum XXI - 21 Grandes Sucessos - Angélica
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3908f6bd94b5b44bc3a6e1db238d986b7ca2835a8943c67428d5d895d981c01f. 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/BRSME9600428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f47b739ab24a63d7ed996d924c6b5ed392b6f98dede4b61e046be629ffae6c. 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/BRSME9600436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad8de31741987ca0c3cc2111be59c48bc0b8bbb403cdd8872e79b99d90e2e42. 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/BRSME9700313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cbc6eee7b73fe36bf924f3b8c0ba6c9c5ea81a7547e3029c50427500979b51b. 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/BRSME9700316.
Ela Não Gosta De Mim (Standing In The Twilight)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39139fd3015107b7c2bebdc9363990ea62b4df2b7ce2480cb21259786c7dcc99. 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/BRSME9700318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38806546d325477e336bfef715d53fa6d45d0ddb1b704e36db5640d1be39faaf. 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/BRSME9700319.
Com Todos Menos Comigo (Con Todos Menos Comigo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf02bf928b5f12662d67d75705ca96f9f397d204cf003c37b4b2f7cf36430ea10. 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/BRSME9700320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e71c72c2cfbf700c90b48309d6ac01b45ff9992572cc39bc1da863287a7e267. 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/BRSME9700321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf3781de4063f071f624f904a78566edb1966fa7e4f147ac2641e772df405bd3. 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/BRSME9700322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8483154355ec493834c364dcc016aa056dd3e839817b33425d513ebfc22dd5e1. 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/BRSME1901699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3f39a5db0ed02259bd2f02f3045c1c676201e8e0047af1c641f26d0b1c53cf1. 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/BRSME1901700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaea52aedc3203bdf7c6deddedc3d9f23e0cdcf16e7f36860da317e86ac46960. 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/BRSME8800247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b25a522dfe392ecfc2c963333e2aa276751797d2ae30f7fbe1bc1cc389d2a0a. 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/BRSME1901705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3a88b718a9e0ff89c258a89617d860e6e7276eb445518aa0b58a6fdd8fdb534. 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/QZEQU1916274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74e58f8b0c8a915fb0b32f85b0aef2cbd10a86be560d73077cd09772b1b49d75. 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/QZEQU1916279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d61fd90da5636ea6a12562c704d771ab49ac59a9d6f039358df291d29df5806. 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/QZEQU1916282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2fb3add330e3328a66856ce88faccaefd124681e78ddc6c27edc2c147b77b03. 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/BRSME0400339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0133dbe3dd7f889e4d399840a14281ee31f2bf2c0a8bbec6ca750769c99f373. 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/BRSME9900471.