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 0xf7e77c2fbbff2ce6acd2fda821fade8810bbad97dfcb33c8ebb21ebd3dcd0052. Chain 2 (Bitcoin): anchored in block 953660 (2026-06-14T17:20:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/54a28e01-d5fc-4687-9bc9-64df54dbc132.json and https://artists.proofprofile.net/proofs/artist/54a28e01-d5fc-4687-9bc9-64df54dbc132.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Jauz Presents: This Is off the Deep End (Dj Mix)
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 0x8056ab014b17ab022802f35e406e6f8258867dfc895b209dff8d8be70c86d837. 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/CA5KR1940938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd0eab9273f070ae462aea63786cdc585954436ea9d33706b6e12c8c98643ac9. 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/CA5KR1967084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x955390ba39ef1aa10e85d2174c5049d1ea878e895705133af09b701e24fb524a. 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/CA5KR1967085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd8304b19547c4bd3f9199047c707f32fb1aa352946f011419b92c5e1aa9e384. 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/QZE6V1800066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1209eac4b03f2dc52ab485b51f64cae869f1bcae02b9a1a84e59cf7c91108699. 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/CA5KR1937106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ada86eea63fcbb89bf73744ae3edb4ef6b814d9a19642bfcc95421ab7405c42. 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/USYBL2000318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x854ba594bf39c5d0a69f37c968b62d80fec60c31946a9b7760d9b59687432574. 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/USYBL2000327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae2e1bb4d6833851a23564600f9871414b968e35d2d967e958592f04a3bf0e85. 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/USYBL2000333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c7db57a9419c41f874c149f6f4d7504f60f4d7d4152752ab2aa9ce498a55154. 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/USYBL1900541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b6eaa2430eb21cbf4cec98a1021d8f29ff014f99199163b4db49e34a6e44590. 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/USYBL1900544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd33beb99af36997c86f0fea498b95f4b9c2dcac6e779abc104d8ca172df45be4. 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/USYBL1900546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1171a740236de8e6d4a7fd3074e5814d4dc1e0df4a77b1881130573d9bc58f87. 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/CA5KR2236911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d46fe2c8337d996de8c89a2d669152bfb9199e5409c118eda4d3660999a6b9a. 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/CA5KR2239114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41bfe96bbb5018d3b46404d42d80112cc7f44f952161062c6ad65b61b0e60467. 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/CA5KR2241879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd28c7e5e47b4f389b7857bd8f58d80e75fecf899cba47b89d0d5ee04544763a. 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/CA5KR1925312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56ac13eeb5e464b407baf6da1953907aac7ed0a410f4a83d4863c5222146d41e. 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/CA5KR1907659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38ddb57682dc6cd5bb1094588f1dd89ae3ce5b797d5174750bf0e0c0f5c1bc3c. 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/US3DF2092393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x855b542a4e16f96b1576bb395263e3e41bc327328b99de2a68c8ec428f64dce7. 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/CA5KR1846937.
Psycho Disco '18 (Mixed by Treasure Fingers)