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 0xe89fd2f0ee17b1f953faf6688169db184c39e96d2edf710e335ee67c8c9a3a06. 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/8e9b49d2-b6b4-49f5-8ad5-38d199b0d7a6.json and https://artists.proofprofile.net/proofs/artist/8e9b49d2-b6b4-49f5-8ad5-38d199b0d7a6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
A State Of Trance Episode 229 (Year Mix 2005)
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 0x2212fbb9668a78d2bc4bc63c60a1624174028d06192b1e15258b8dd5e40e80c8. 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/NLF711313697.
Cosmic String (Daxson Remix Edit) - Mixed
Nocturnal Knights Reworked & Remixed Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5a75904812ec3c3b346e9c26d2ed2196e8f9bf9507240710a16f6ceebfa6f51. 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/NLD682004056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d1fc48989e4d847882ab6b472df73a499fe786641ff084d13048058d71240de. 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/QM4TX1545941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x332b8c67f9219ee678bc56cdd5d32418df726e137f1a5e1e7e2bdd8413f57bb2. 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/SEYOK1520922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd79b2c5d1bdbeb20b6953a000a362ead0d096df7b8dca1b42e934eb972c67bb4. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/QMBZ91418727.
A State Of Trance Episode 182 (Year Mix 2004)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea7d7c0f2a7bd9ac1a7e147ce3e72ec7daf101480ea6610c83bfdcf0d0422840. 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/NLF711313808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6357cf08090efd83e97cdd6ea38c170fcd127adcc68e6301b35f1102985d808. 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/NLF710500360.