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 0x1005ead0d3c07412acd73dc88d801b233c6b42f6e089d22f193cf3ee2b768e76. 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/19038457-3cfb-4675-b3a5-5a29c64ccc05.json and https://artists.proofprofile.net/proofs/artist/19038457-3cfb-4675-b3a5-5a29c64ccc05.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 0x477b392e85767a0474a37bb877f90c7729b788a315ce43f2db2c03e4609c2c61. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/FR59R2101593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc54e61e06ef6e00ba6b1c9f7a6b9d796adf457ad6d4fa21a2a28e55edd3efff0. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FR59R2101594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7ac564019f2dc464519a216fc0114a0ce013d994fa937657321ddf7e210175d. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/FR59R2101595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4eeaf95ff7112f73bb3e420a98470e6922e5e75bed9b4af33493f051feabd1b. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/GX5MX2134640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa97dff50a4ed5a6cb7e599cc2442a7d5d6e0cf04141c5194137608100f0bc2a. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/QZF8N1866616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59d6de1e571ebd3d81d7bfab8c6ed274e4447db85813388847aced68b93d9259. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/FRP621721340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83f8b8a33c8e4da099e80e5bb1147ab108a66d46c074db5101c34ddb19e5bd6f. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/FRDCX2065850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fe7d958f52fd4607e96eab3c2a95f98b2fb2462329399da320c7ca55f99a8e8. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QZNWQ2006732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c898e356935df789d5b3d94ab1d798c841736ee23c6f77eb65345996ec1be62. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/FRDCX2082750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4edd42a2b079fbf48e10d3f3725e3414be071f1f8ee7bc1001dae4fd2db775fc. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FRDCX2088940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd497c7cfe624eae98b1d782265c215947a767e28c47c9ad0598725842286667e. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/FRDCX2108380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f0eb498701bfe4e08e17f10633870906bf6725de5d3e5ee6991c920736a5b48. 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/GBKQU2427537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1473182ca0211704c6436aa52f8073be0d87ce553db9580bf42f7ce65ab76874. 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/NLCK42212733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x415a0702b275217d634ef50c9aecb43f062e7829234523f339881f1657e2951b. 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/QZMHN2030979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc5a86f4017e2cb2c80c7dacadcdcf59dcc6b30ebcb1065232f1e9dcbaa4bd8. 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/BEN582200104.
Blow Up The Speakers vs. Hard One [Live At Tomorrowland]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x435c2ca3650e9ddcab99ecee5aa5644795837c5b288803fbe0a1ab3ee889aaf5. 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/BEIW12400715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73d15bc57e91d254477df031685b65f7751e04c6a0f49abcdf44ea159adede6e. 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/QMEU32028323.