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 0x4aa9865b496a9b390d2a2c82d11551648583c4fa9b059c7df390b45b399a53a6. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5176a7a6-03c3-4b44-a37a-b82a47d4a4f0.json and https://artists.proofprofile.net/proofs/artist/5176a7a6-03c3-4b44-a37a-b82a47d4a4f0.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 0xae1cdd6e74b1c04c09cc47759505340b9d109c2010c74ee0b776f7833c05e9d5. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/USGUM0910139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x958fbdb10c6e444ee3522884ddc38bcf0195ee32247ba94b5d8ce5a83ac35e96. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/USGUM0910140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49c416078368857ac2c9152a404f0836677c65c1fbe9477f8a783c7d46e66a52. 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/USGUM0910141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b4831db31654d5d89eb3ad201fbf5126f14acb4256cc2a5c831a12474d729b. 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/USGUM0910142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb195042fcbec717ab4aa31774713899f994d6b89a11603f2d7ad95d9fee91a88. 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/USGUM0910143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aff28cc253e515de4a1a306919f612a694ce35a846f2b0a75846ff771804777. 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/USGUM0910144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c5f5d7e8b49744ddee60af18d1ae40b89727c6e819930923320dbb03f760b94. 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/USGUM0910145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70d20be6c6f4fa8dd1abd0abce0efd936204dbc699de07fb9e1c847f98245745. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USGUM0910146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd0efaa6539c559a9402ba08d8329f5a74a95ad2830e176fb9c3d660e0bd4538. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USGUM0910147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5318eb07c11b924b3476d536657b058e5ee38659700b5ef162883a31fa4a8ac3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USGUM0910148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed2cd0d073fe3fe3bd59496fc47be359ba71079ed076eaaf26f6c4cb5e86dc7. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USGUM0910149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88235ccae915d08cf8d4c69abccb1d0439b7d75582b4810f236d188c51de0fc7. 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/USGUM0910150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71daa072500026e29a2935063dde0aacc2ee3ffb3c9a6fb3019cd529bb17fe7e. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USGUM0910151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6970ff5adc4e54a82127a146b1f441f56b0b6f83846d859a768e342bec31e414. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/USGUM0910152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe71074cd4b6cdae99c689d2604878e76607d0181be3b14a204e27b0e99dd5d11. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USGUM0910153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07d42fdc3f352d2281d47e66f092d3fb02daee5322fecae2463a05bbfa207289. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/USGUM0910154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x240aadcab264f75375f1ff2455aa42c26f385aae04b083e50192f351ba72a879. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USGUM0910155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f9670b7955b5684d55d612acfeb72edd7dd59be4b9e7afc102378f92362f8be. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USGUM0910156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6463f63c3540d43d761a6f300fe63070a25554e9051034c76d4d77711920fc4. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/USGUM0910157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9112491039f2405b58c9205becb60b2ac2b116e8876b0df8f1c7f2ea840c5f93. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/USGUM0910158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45ac344c60f4664d4f1bac779eddae3c2f2e9be78e910aeb8ef5b5fae89b1b44. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/USGUM0910159.
Darjeeling Sun (Gary Martin 12-Inch Extended Mix) - Mixed
Mixmag presents Jamie Jones: Forever Is Composed Of Nows (DJ Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6e8c9944b37b402916ceb13c5110e3a092a91a69777593016986866c390c3b0. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/QMDA62109304.