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 0xdda0d7319a64060269a7e761432db24d47d68552bb5181c62a3ed3c3e4821d9a. 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/a22fa06d-08a0-4c7f-8c4d-5d90eb1669c9.json and https://artists.proofprofile.net/proofs/artist/a22fa06d-08a0-4c7f-8c4d-5d90eb1669c9.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 0xc8e0d4a31b48078b4238fd99859f703384fcd65ed8bf9d6a310a541c089f8a7e. 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/BCIOS2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb88212039d8eb477c42806a4d818fb0fb652ef22c1bf15150b329448375f6662. 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/BCIOS2400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f8186a09fd31a228184c29e18a5171573eff13220ab6c852995b1acb1ab8018. 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/BCIOS2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8e0d4a31b48078b4238fd99859f703384fcd65ed8bf9d6a310a541c089f8a7e. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/BCIOS2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x242f2516ade574e85afe01f7aae0769c61a86cae6b4bdce4391622145d426e07. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:25:04Z), 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/BCIOS2400048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff53276d39ec5cb193227acce082da98d53699f1d7784096b46372ab82cf25bd. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T21:02:59Z), 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/BCIOS2400028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb0973b7fa79e4e915156885fd564574454fca592a744b4d6c317424ed4a8620. 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/BCIOS2400051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6d12b934f68987d834fd0936893724fe92bfc9ba92abb1a74097382be91c481. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T19:48:42Z), 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/BCIOS2400052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdce540f769be499204a59a7a4ee57a385df7e8610fcdc1bf274c4a700641015. 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/BCIOS2500029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f8186a09fd31a228184c29e18a5171573eff13220ab6c852995b1acb1ab8018. 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/BCIOS2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2be278d1643c7847c1a0755619ab89479f1c7631ab4d0ba2fe3c68a4c43b05d5. 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/BKT7N2400010.
Jhony Convida #10 - Revolta do Condomínio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefde0251a73bd0eeb42e509ef7d24f16e07218ff75efa80441ae230d6deb093e. 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/US7VG2490511.
Jhony Convida #4 - Se Quiser Falar de Amor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3af23e641a73cc26a5aa1142b716202c5f4b5acaf0b1488f27e3a64dd15402d. 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/QZW9N2249105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb277c726aa7fda9ea1fed6d26d1d4ca752f8d13be46f17d232be485d116864db. 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/QZTVM2226284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad5d28ce5d4e16fb591324c3eeb0dd91be2d93fe9f8f392d5f131ae80ba05cae. 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/QZNJY2311891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x773e22f328a9ec2cc32f3b661f0ea5f4cc112391cfc63947aa3daa4afb2ba80e. 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/QZNJY2252481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa49eb18a85a4b1b00ac343793bbdf4cb1b432cb08bf9a6cb5804f98251e80942. 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/QZTVM2357967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cad150c3a75e0a97c411b0570f4e019846838503c1da354998860b14c1465d5. 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/QZW9L2236259.