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 0x3a6d336ed9390cdec8dfacbfcb7e5ed3b734262b48b69c6c622266899f1019f4. 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/c5db6c77-2143-4bbe-9438-6e824321edb1.json and https://artists.proofprofile.net/proofs/artist/c5db6c77-2143-4bbe-9438-6e824321edb1.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 0x68f42d2131a6cc9aff9f2b0e8dba80045ed267784d3610f06a129b98e48d4674. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T07:27:32Z), 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/NLE260100216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c11b90395fe65ae6b68a28554c7b60c876866b997d248606ee64b6d77dd8556. 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/NLE800500001.
Dark Side Of The Moon - Axwell & Sebastian Ingrosso Re-Mode
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c567e40d6a2cd26ea8f08aee6258f6548546a0cef59eb22e1d6dcada8c82e2. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/NLE800500051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6b187b36bc8a037b567fe8aca4e551d43b3e7843130e6707d9517742b346355. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/NLE800700165.
Dark Side of the Moon (The Remixes 2011)
Dark Side Of The Moon (Alex M.O.R.P.H. Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x362bd64036eaa924528ca5afa9d110bb8a495d31b73730bcb1cbb9b1c5abd889. 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/NLF711501672.
Dark Side Of The Moon [ASOT 229] - Original Mix
A State Of Trance Episode 229 (Year Mix 2005)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73cd67805271ad53a0e504106a9d8dfe4b99f208dd6964891788286fd26d8ae6. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/NLF711313693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c11b90395fe65ae6b68a28554c7b60c876866b997d248606ee64b6d77dd8556. 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/NLE800500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x831012c6ace328bf3a7b0ee26be6a5f8124853f0e8acd1e2823dd3b880140d6e. 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/NLF711906693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa27ea8e1195ab2c0cefca78f9aa8f7be1b3a159065be53434c22405de77956a6. 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/NLF711503802.
Dark Side Of The Moon [ASOT 182] - Original Mix
A State Of Trance Episode 182 (Year Mix 2004)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cd36aa6dc5329111650ff2d138fadaecb5c72033a02a7195384392c1c17848e. 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/NLF711313792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x362bd64036eaa924528ca5afa9d110bb8a495d31b73730bcb1cbb9b1c5abd889. 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/NLF711501672.
Armin Only - Imagine "The Music" (Mixed by Armin van Buuren)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a6a84d3adf15613bdc24c66f61fce7a182e4750d43b9b4cf3b5bb469620449d. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/NLF711200990.