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 0x41dc369ce9325893595e36192f9902568f3104d77bd608cc31f8d0f25bd2c4f7. 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/70a44cf2-8d5e-42ee-bc24-ab44018e1edf.json and https://artists.proofprofile.net/proofs/artist/70a44cf2-8d5e-42ee-bc24-ab44018e1edf.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 0xd550a035d187a775bf50c683359a262b21df2a96fbd12b2fd0030ee56d9fa491. 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/FR96X1672004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e42718da9c220c187b0697fa23ec5f0ed21c4c704dbb97f7306951b04136953. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/FR96X1672006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdc8d44ba82bbaa0e7aa93ce3db437e96d4a8d552167acc95704cda297a33ee5. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/FR96X1672008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f12f8d7f22325e9211832aea3a4e7f7a9c94b17f1622100c4dd3260bc72341d. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/FR59R1751998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x200d38daaa763509a29a2cba5b9084655e4dbb050c36a2dc0a4fee3623d4f7b8. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FRX201796935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x433f492cc063b75d2bb941c8423507051257798727f34d80aac692428ade86a4. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/FR10S1959416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc357996bcaffac00fe7694f1e30b954a3bca5fde941b8a5e85c988c38255b3bf. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/NLQ7C1900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e952294d12a50b7688900cd82922f8a7df9f252359907ad07a4984e7e8b8976. 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/FR10S1959418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00ad03d86177837f3df28c1259e366aa6fc845b9b228c98800f5d6d8126320e9. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/FR96X1900131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78f60faaab40bec313786b260af28aa8ecf34d7aeda923e20b0e4b41a483544e. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/UKWX82100261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa91b5af9a88e49052e9d841bfc261759ad705b4365d9205e2d41612fbd878739. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GBKPL1981105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c0391b5500171a98e4e867c31efb5e2e628de4687181e1f5a7940f6414bce15. 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/UKWX82000166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa33742e0165c7bf55bb4fd57c8a1473ed2cb24067ecdebd4c21e3b7ac4925b25. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GBKPL2089625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x551e1121f522c3d8b7d7749e71ac98c66db227c38175814366c01a2d122d1df6. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/UKWX82000161.
Electro Classics 2.0 (House, Deep-House, Techno, Minimal, Electronica, Future Bass and Many More...)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab3ab40dbd7ad6ee26f998e1ba6f64238f1018fe3046bc1d05ad0baaba98c016. 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/FR2X41534306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dc0dabd5013a78a85cf222fce676bf5a4c4f8f28cf87cc1d7bd9cbe5117fd5b. 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/FR9W11805517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfda942d3e7b100a9a5c0228ab5e43c521939285ac5f044d82aa4d43fd0ddaef8. 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/FR9W11705294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfda942d3e7b100a9a5c0228ab5e43c521939285ac5f044d82aa4d43fd0ddaef8. 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/FR9W11705294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2548ae93bfbfbbafddc1a69c39d6654f77fc8addc3a40e9e4d09fdc1c710cdd9. 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/QMVU41800005.
Nu Funk: The Finest Funky Tracks From the New Generation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa808e48311de88ec92758165a8e88deaa93ddf7e9a267c371e6826bb47c73752. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/FRQ261900019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab3ab40dbd7ad6ee26f998e1ba6f64238f1018fe3046bc1d05ad0baaba98c016. 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/FR2X41534306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d467dccf4f8aa46d7cb94658fad65c71bf1e086edaf77ccfd044a1c9c3145dc. 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/FR2X41534307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5e18206a60d3aec22b70d74fb1821ec26251dbc4d42d93673347097b745e333. 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/FR2X41534308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc10c8d09b3d2a88f088ef188e71a356d7c7f25dfdecb83c03d280a7da8db9f. 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/FR2X41534309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23de0852f453f7a727a61d375d2a31d2412fcc734fb4be14db0c8a2a230610cf. 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/FR2X41534310.