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 0x31be22f16347b3df6a721a521936cdfdcc9b7b44908ea49873b98158d31b1e33. 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/28e3c337-3eee-475a-8170-e53c11ef2d7b.json and https://artists.proofprofile.net/proofs/artist/28e3c337-3eee-475a-8170-e53c11ef2d7b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
ASOT 1163 - A State of Trance Episode 1163 [Including Live at F1 Mexican Grand Prix 2018 (Mexico City, Mexico) [Highlights]]
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 0xa9ca30f79ab2c02caf2383f88237470c055fb7bbbe0dc8663c5cbf8d3e2efbd7. 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/NLF712401333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3bc06064b91c00798ca6cfd07765057f8e7857bb71fa4d5e068e494a9645d4e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NLE802200527.
Such is Life - XiJaro & Pitch Extended Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7cf1f381beff9c33bc2a9e228c8335490c3aa14372681906e7064cae6501377. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/NLE802200528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6407f49de9301648794fcab2897a213db81f854dd80ed7ed54faf7e4338f0b0. 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/NLE801300527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5265b8f4b9fbcc178e1ee1589d9aa55f193c01c1a538cd920a7304051df0da5. 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/NLS760600300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53889fbc12e3fe50cabc9eecc0a771ec0ebb1f1f6485c8a57e94c1634f4ac193. 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/NLE800510089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6407f49de9301648794fcab2897a213db81f854dd80ed7ed54faf7e4338f0b0. 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/NLE801300527.
A State of Trance 650 - New Horizons (Unmixed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x347b483f083d02b94ffbed42010dfee5f4406180419494b0d1a16de4f6eaf240. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/NLF711400066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b20a9c2ee4a8129dbadfeed1658e55e8d7d2509bd35e032145c9ba486e343d4. 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/NLCY30902890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x186e3d8530c702c4b744ffd188c0517a0cec2e8786ca7d0fd25785da56c1d9f2. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/NLC731700041.
ASOT 1156 - A State of Trance Episode 1156 [Including Live at Tomorrowland Belgium 2018 (Highlights) [A State Of Trance Stage]]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f3ad066280fe9062b1b45cc79ac97c7e399a8d18f52109caccb68f84645553a. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/NLF712400404.
Female Vocal Trance Legends - Best of The Best
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x186e3d8530c702c4b744ffd188c0517a0cec2e8786ca7d0fd25785da56c1d9f2. 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/NLC731700041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3daa08e44a31a1bc44ab73b3627ea024e9a5e50da592ae13cec81277b368749. 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/NLC731300387.