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 0x7949903df885b5a4010dc3db90fa5737abd1b7adc347a1305de9090697dfaf74. 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/2a8892a6-4b08-4400-9bcc-451f0aac1432.json and https://artists.proofprofile.net/proofs/artist/2a8892a6-4b08-4400-9bcc-451f0aac1432.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 0x90733d1c74538fdb84b1a60509eb4264925a524d53ead09f1707708cc535a851. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DEBL60812688.
Colour of My Dreams - Megastylez Club Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed596892393d2ba206daeffdcb6b71858a9a0e35e44ffab7c094fa7a62e67d7. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEMW40900114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac6f86784cec44db575361bcb9bb7f95dd5a9d75975085a491a599dca87c08ee. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/DEN060900841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e196f7293b223f957dd0537dd0ced415a59b904407e390487cf8a4d648bb748. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/DEMW41000004.
Follow Me Tonight - Axel Coon Remix Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaa812f1197ceeefb744524c347f327826aa4d39160cf43d1217da08ff815452. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/DEMW41000038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80142a5bc53a9ec6d3c16803d30fa841badcecfd5db88ab790de165961074d10. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEHK91994851.
Colour of My Dreams - Empyre One & Enerdizer Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aa2c906dbc722b13226f7864f5b707b765e92494f9ca658b47018150d9307db. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/DEMW42300140.
Colour of My Dreams - Empyre One & Enerdizer Extended Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22538066b8f10022f3b1a8a8b3fedaf2e9f4196299359c64f2f3d698a6cf00dc. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/DEMW42300141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ccdaeea840d465c1258d7932c90885442b34d830db79e6ebdbffc9b5dc56a9c. 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/DEVT82500101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaec3b51892ac2e327c24776e8da63c99b936ca56e511e63e5c0e71379104c582. 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/DEVT82500103.
Global Trance Sounds, Vol. 3 VIP Edition (Future Ibiza Club Guide)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb332c440861ec530808815ee9e75024b1643b8d63223ed1ad6b13ecf16b1a92. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/DEBL61242853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd54b7a24452f953e0325bb71d658944e7df65f66bf3bf2a6594a5f60ac288a20. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/NLD682300777.