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 0x7cc34b5d66c90de8eb7958e4eb660bf690338336c292226727386aa60ffe7f40. 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/91fffd73-0982-4a2a-9df1-67e5a5d7a36f.json and https://artists.proofprofile.net/proofs/artist/91fffd73-0982-4a2a-9df1-67e5a5d7a36f.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 0xd379d22326f9f0f542140fcd25115e64ec01eb018ef3261f822645a038224536. 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/NLC731900373.
FSOE 857 - Future Sound Of Egypt Episode 857
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c1f598c5de53c3ff24dff74aa81d35d278b848213328d535c26e1de228c648d. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/UKRMQ2400589.
How Will I Know (ASOT 904) - Ciaran McAuley Remix
ASOT 904 - A State Of Trance Episode 904
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x904643366d41a4606062a85491675f4204b6ffb900d2d3ef47d9c49b1cdfba21. 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/NLF711902515.
How Will I Know (ASOT 850 - Part 2) - 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 0x55a81cbba1f6e20792fc7f6346c532253b4712c8c685b1515d7a115dddcc7d7f. 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/NLF711801410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb0a86d384b8b7ba217e1ce2fe6e49ea452505cdf092c55dbd693344f74f8c76. 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/NLD681903447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01d0e99a78e7d190b22230a169d3b7b05402f3745749d8befe6bc8c29bec977a. 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/UKRMQ2200169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf54048966d83af9655d1f738c2e481960865fa4b3419a66e050f3d0a0cbe773a. 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/UKRMQ2200170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd906a2dc90d4659c7fc6a8d48603ddba851ba12d4952fb5789e60b52377cfd7d. 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/UKRMQ2100568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1a1dec84f2b90a6ca0b9eca866cc9398b6dadbbf140f76d986265069ab87a03. 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/UKRMQ2100569.
A Billion Stars Above - Ciaran McAuley Remix
A Billion Stars Above (Ciaran McAuley Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46183fbe1ec7e5e5b869b51c5d6878b370df991ac5308c52e19e2031c8a67fc1. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/UKRMQ2400367.
A Billion Stars Above - Ciaran McAuley Extended Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac834c85b29882d523e4068ae551e33a4b00517573cc66589d0107ae21e7815c. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/UKRMQ2400368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1456226cb199ded574b7b2be08257880c0e8684456543d98f6274b1b1d1d0f99. 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/GBKQU1313627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe4a4f1d56366d3560bc2b2dc025ec4db6db3ec3bacf65f1edb6467c534bd3b7. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/NLC732300543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85372a76b496000abbc9ed90b61d7e0a0646bf805c28cf1996796ffca582d634. 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/NLC732300489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe54b13cd1fdcf95f67fe56d3109e071f3997e9584b7f662dd1457697d6833085. 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/NLC732300490.