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 0xd679125f3796baa2b8a19157672eba865a067d33e82e22e34138779563a87424. 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/995014cd-43c5-46c7-8097-b7a631e1f10d.json and https://artists.proofprofile.net/proofs/artist/995014cd-43c5-46c7-8097-b7a631e1f10d.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 0x334ddba7d701245e96e5baf8e995d6e1eacd79240673524a1b59438a44fb7b42. 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/DEPI82320304.
The Beginning and the End of Everything (From the Big Bang to the End of the Universe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf21447d3116585ac9dc877074a9e9985dcd14980fe21409838179969d9450079. 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/DEH742324336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0787b79f9d4d7f85564816175d3a3db2f7108757390f0130e673acc44fcc7862. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/DEH742323987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb758284c7d24f5c7b4a17b1c82611dda695d579f7e7177e2b09441bed9759989. 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/DEH742318964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6647a546b5d30824916b878a7d1bbb34961b9fc8ade7f6ac5070bf614b28f138. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/DEH742330427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1f66b2c4da12733e42b78f43e80a2da50290422ffa3af584c1da5ac16da72f5. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/DEH742401536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06c28404991c6912853ae2fd89a722331211bae897d0447cd4ff7fb1b6ba015e. 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/DEPI82326856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8d3ee6099bddcc1f5d5816aaaf2a9609d7a19d5c6748e8d9afb26ba66446639. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/DEH742330344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeb94c8d21a753bb38f75e98a1d9e3e30c029dd261abe976e50c7882511cce2e. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/DEH742411914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe838270c3e59ba527b2b96c701b3d15de75fd809f7ccf8e35bab0e6efbb09719. 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/DEH742443880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53bfde68910ff3af5d4dbeb86a1d73dc87b0bbbb3d121a40d004844b2c204460. 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/DEH742443844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6a5ade3da9a8eaa7420e685abfa1b8457eb4f76c11458cdb512919cee971837. 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/DEH742443830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe26d8f252dc0422fb001133fe6c3e19dd27279dbbd66450a911b41c28b5d0381. 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/DEH742502085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76db97cd00b8cfe86117b7802b8af7de2697b7f3c54e8f4db7c3da556be587b7. 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/DEH742443879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd43a7b01033752300a4261097e291b0d04b86af470614e50f4586ea2ad47a785. Chain 2 (Bitcoin): anchored in block 960157 (2026-07-29T22:12:10Z), 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/DEH742443839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45d44cafefd526cdb10e66f7c07f7f40076e0719bb06bce8ca211c1c06444d08. 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/DEH742443829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca55c3d3257d6326f7977dfb72a6c444baaa4c71fe3b971400615726bb2aac25. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/DEH742443828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ae983593b0e2dce09b1a7fa244ccdcce007a98b15ff12fccd6884ce1e6bf22. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/DEH742439791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ce13d039e0d516693ec2a9215fd4f4883e803f827b2ab0bdeaf77437e353798. Chain 2 (Bitcoin): anchored in block 960305 (2026-07-30T20:14:59Z), 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/DEH742439790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x473d1a790cdc566a2c3871f66c853fbef5f2d0a90082d375593d4e94212e15ce. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/UKU932483342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8ff66392a35ea3581c275c8e3b56c41f926537baf5f86b6414d85c3f93ee611. 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/DEH742429734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbcba3676d7278cedfbe37a01d097eb4de578b5f9e0feb75d01fcf7f0be350fd. 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/DEH742439560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05e6db749c442f9e30c5e694a9006314f7fb71da6988a83d15858563a9a720e8. 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/UKU932483347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb981fd1d17acb766c4f632d92922ff70765593ad0177d05792a8d5bdec908257. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/DEH742430508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd557a107aaec0283cb7a83cb7050e76073c8ebb548529a2ea03ce6a397fcf3b2. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/DEH742429718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56e3b01efa84714e526bfe0dd3d1fcd69e1d771a7ca3cc9caf18fb22519c06b8. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/DEH742428460.
Feel Like Dancin (Paul Parsons Nu Disco Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9d9781ee77c7021a893c9392ef6ee70849b292235b06be172ee71e525b78697. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/DEH742422400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x040d352ed9d6cd2832e5b3f13c134068a4a598d2a57b091b11a343f1322002d7. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/DEH742428220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e8fd3419cd62e362580dc9870081bbeda7780ce03583ae38203d231526aae14. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/DEH742415730.