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 0xaba3f7e7011b960553624da2b131e4cc091ae4c1da36440575503b0b2f8135c6. 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/6e2715cb-9b8a-421a-922e-a26196563994.json and https://artists.proofprofile.net/proofs/artist/6e2715cb-9b8a-421a-922e-a26196563994.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Na Rua, Na Chuva, Na Fazenda (Casinha De Sapê)
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 0x2af920f46f774f4dc169e096f18a31875e77f064f836cbe68c9eabc0f95c4456. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BXZ5K2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7603ed10428ea8a1dbb2cf9291c8b14e88aec307fd6a50c123254d24be6f465a. 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/BXZ5K2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aab3501894ae7474c672b3a4e66416a5938569c1c311f01dc09fbbdff8ebdd1. 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/BXZ5K2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83c4edf448e81b7c31aa865c11d20dc6531d2294fd95967686d26c2ea21c25c2. 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/BXZ5K2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6151e4ecab6a4bcde8df584b860ac65df40a82b8f7d62d3cdc980224a8aec4fd. 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/BXZ5K2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dab761e7decd3400804129fe6d612c89e9825cb8e13794fd0f9dee4b83e5686. 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/BXZ5K2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed35df026050c16dc845aebed142c02a7337e275c6e75a187ca5a0b068e73ff7. 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/BXZ5K2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1693992029222845a4e0ac91d424d8753b517f1d284026c3c7dc4b61dedde73e. 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/BXZ5K2100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x605cb7c76b6d9372d788aff337136d24f219ee1cefd0d2957f71452bc7602c8a. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/BXZ5K2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62d64dd7d27b02b61f8b3030b5b3c35d7ecf8ba38fed080014894dd5e05ba669. 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/BXZ5K2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0db3190dba673f0729b9819588a7ffe7ec8775e31495cda2c9a17f102fdd69c6. 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/BXZ5K2300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64c10fedb9b50f77088b664416da4b32fba17c4ff520195805073f0bc8e50e5e. 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/BXZ5K2300004.
Podia Ser Sempre Assim - Gabe Pereira Remix
Podia Ser Sempre Assim (Gabe Pereira Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7700007633e0e6e6ead56368617f4bd0d355340c8587464f3f4224edb4f65ded. 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/BXZK52200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f8e5c4923ae091273e8171adccbb15e85a14602840d104c9701085e377131e9. 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/BXZ5K2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x357f5ba0d15e98055b91ab4d9b657b1c2b30c146752eb5885a14952063cded9d. 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/BXZ5K1900001.