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 0x5952f0622f30a621f2f1e89ca77e156d8acb41ddddca70e45abf1dd6980e07e0. 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/5c6ad0d5-617e-42f3-a6f8-eea88f1894a8.json and https://artists.proofprofile.net/proofs/artist/5c6ad0d5-617e-42f3-a6f8-eea88f1894a8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Gravidade / Jeito Carinhoso / Leilão (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 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 0xd42d4139c642d901d6185ebbb718d1502817f8f70b2ef75186ba0ee32c6a7097. 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/BXWOW2400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d9248be065c3dfa61751ddd9a9cb560d866ad5734b97e753e7cc131e861bba9. 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/BRUM70600801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f77431591762e586fe033f2ca9c7f1955c8ec4ecf66c672e3badb8a4836d55. 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/BXWOW2400166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x994c112b0dbcbb1d0420e4de0c9c8384ed813e993ed44a2e6c1a52ad407832d5. 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/BRUM70900139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c71979e5b9725716b29c6c06b9ad0e8fd8202af9d328503cb782126aae2d592. 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/BXWOW2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc9a4adfd653042c08fa617b97263d7bcccd4701971704834d04841aceebcfcd. 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/BXWOW2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0819688b9324e0f2d513741e984ae19542b26ca1bad80beb015e5eda712569d. 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/BXWOW2400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd42d4139c642d901d6185ebbb718d1502817f8f70b2ef75186ba0ee32c6a7097. 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/BXWOW2400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3495728df60e7446d5e382de5548445a1fe3f730d8b1cfb73a55132ba0dce5b2. 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/BXWOW2500032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2569e306c6d569889c4e9df03da91402c31b6c4371bbdc6480b7971f01463e3. 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/BXWOW2500033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc043655163b16ab7661f3a6d8dee59d9f5459c66ab94d6233d9fa4ea576e4c8. 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/BXWOW2500034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe30279f89c6ce441792da72f325755e353e2ffaa764f8970e883f300c279a050. 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/BXWOW2500035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a17f0227463c24400411b231e94912de1df68898122e26219081290877e652c. 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/BXWOW2500036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59662eae5a46942c533f54eef0fdb868235f0778ba429251e3a614e308e16e19. 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/BXWOW2500037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1353270318fa85f4dcec1931a80436ed3aba022b9ce8e2b6f7c1c01c140fb22a. 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/BXWOW2400156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x099820be9a277030a82d5415a3ea0ac7b85dfba6d4a7afd1fc1302138a886b46. 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/BXWOW2400246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc3c4df9de0549571a4375bb3d287e4361d928ee87191f148033fb6c202f7c9a. 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/BXWOW2300334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x114105dcbba11c09a3d36aa527739b50a40a0cbe507f52ceaa1b92de043aade2. 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/BXWOW2300336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe6dcfd2d50071d809b0e0c7567b2ab3616d5c5899a13312cf936add523a093f. 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/BXWOW2300338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a3217b7bac91b331031a6250a508ce3958ce7adcc31ee65f152531668d1bf21. 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/BXWOW2300340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aa33b8b14b337e0f3baaf67c7f5368f3cbfbbccb05fae07691b61ceb8278ceb. 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/BXWOW2300344.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5dd59c04fc532c6166c2742ade0cdc367b80660d6c8d144f47e66b87f23839e. 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/BCVDD2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fa2685d866beff1a02dbce4e8d271069f811a56a8168d51ff70ff82f7b20cf0. 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/BRWNV1500097.