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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b597e358a4c2c2d01573143c9ac5eb9e80194f6e6a185b2331c8facf146189. 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/6f33daa5-d8a9-4c1f-8dfe-ce3c3042dc90.json and https://artists.proofprofile.net/proofs/artist/6f33daa5-d8a9-4c1f-8dfe-ce3c3042dc90.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf27dbf7b48db572b19af59d4dcfce8ebcca2280adbe3c26206468f34f062abc8. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NLF712000077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fa3fa5e2c994ce316c1c45cb89cae0fd404ebb2f79db9e79660be9804d7c374. 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/CA6D21700205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ed06483ce0a48d4ae718e56845ac24c068c6579839611467997efc6bb6cfa54. 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/CA6D21700206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e0ac3b6dca341b76e132bb11f3a94402eb137f58d1e72b5ebd9719e25816cde. 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/CA6D21700207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb08027d310f15d8551bb8714b52c893c9d5ca25c3c17af1b87756c899e877844. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/CA6D21700208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7413b2319a71de9ce39c09bc8f4cf53fab616dd6c6f402d2050f5af47bab55e3. 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/CA6D21700209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd937d626a2ead3b3b78c8b57f0a56fff1e01fcc4240138501d48b07401cbaae. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/CA6D21700204.
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 0xe0a05c1f0239622f0f575c7e461398784ec93e5a28d6a99e2a61ccd7f1ea3796. 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/NLD682401977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27855dda226a8b2e2ff362354a1bba6365636a396fbeff302ac30abe62618e14. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/CA6D21700009.
Deep End (ASOT 850 - Part 2) [Tune Of The Week] - Club Mix
A State Of Trance Episode 850 (Part 2) [+ XXL Guest Mix: Gareth Emery & Ashley Wallbridge]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94ae1bb35893743cd0c62cab64d4ef50bd87e5858b45ea57efbfea07ef441513. 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/NLF711801395.
A State of Trance Radio Top 50 - 2023, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bfd4bcf01272c19669da875a741b97a15912555250fb1958b98ca4145acdcd6. 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/NLF712305900.
Saving Light (ASOT 874) [Service For Dreamers]
A State Of Trance Episode 874 (+XXL Guest Mix: ALPHA 9)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9f8612848bdd6a326446e4185fad36f38b0352df8d4c205bf99ebdac25aa88d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NLF711808930.
Who's Afraid Of 138?! (Vol. 2) [Mixed by Coming Soon!!! & Ben Nicky]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae4fffda9440a9213141b1a03cbdc3e1fdfc3d20e5a08d25d7fd80c2a53b182a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLF711507133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdebd0c1c9475ba42bc4de9a7fd335de34c1ac6ab534a9ef357fde5f6603fda2b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NLF711507132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca3f8df13ede08906ee089366dca29d3c6b8bcafccc30e0f91cb6812ededc4f7. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NLF711507139.