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 0x910b6f4d9145f16127917604597b14886352c6763224056fbf93f2c759060787. 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/1e8f81bb-d33e-408a-8d24-e84ce7047c96.json and https://artists.proofprofile.net/proofs/artist/1e8f81bb-d33e-408a-8d24-e84ce7047c96.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 0x58860e0fb282ea22f97fe0c555ceccdd7b5e81d288c7da1d1fb7bab20ef35949. 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/USGGP0712001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf13d7a351c8d557d1cf1854d9ddf39543bc6cea8f5b8e77b9da29e1b6d1d0b6e. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/USGGP0712008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde03735b8c5f579f866869e279a2bc37e947108298272ef914f71260e4db14f5. 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/NLCK41015372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37d13167dfa9c466eb66b08942a30c1e843cf92d5f384021e89b15974dabb014. 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/NLF260500018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1207e232d0904d86ef224fa8c97b0aec075bb7231c8c43a8fe06be6fa986db4. 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/NLF260300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5a07ab3f6c1b8a7b647aea63b727e5611e5afdd3d6f60d5be421df34efb3efb. 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/NLF260300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e02f2486230de7b1cd2f4b035db5f23e4ce5a89c3f934cd91b9147eb4061a10. 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/NLF260300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2645231ce2db6d5596f4ab8417022eb58c58d3fe62aac0ac3bf0d4fb345e09b9. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/NLF260300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79e1a90a8f54e400bad3dddb53ef92a72cfd091145f43542736c5db8df40606f. 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/NLF260300025.
Axe To Grind / Sickness Of The Underground
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d52d8bbf14870cefe3236329adb1c3df11492021d698fca8f569c4a2ad30de0. 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/NLCK41022182.
Devil Worshipping Motherfuckers / Pentagram Of Coke
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f49b3b619e4a846554037aae3887db47a47291e1e971318ad5f72a01103340b. 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/NLCK41019654.
Masters Of Hardcore The Conquest Of Fury
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3ae45cc30fb330c0c324d8cf072990b1811fa539b0475d7754198d09443a4c4. 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/NLFL71300023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27b941d5b6bdeb031b058bd68c6f41e4420f58a3a3d1aad8ccbb7539dee3d397. 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/NLFL71200041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdedbd278f7d0e68044bbb9cdd71704656d0b0c952797c461032abe8d234c0a1. 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/NLFL71300047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb4ace189d2a2809db0039725adc61c60a0f761ac5483598dacb095897a56df. 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/NLFL71300043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f85a86b1c195b24a1990c8026e48aaa5803690a2a393698e93726114b3c5a55. 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/NLFL71300044.
Down Under - Masters of Hardcore Australia Anthem
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe15a7a4961136468058a16a07d8ea56f893df6cb51bcf132f6d2e224d0ad0ae6. 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/NLFL71300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf4fa202f56cf205ef839f74693bbf86b9ef61911bea1179bc086d680b96c27f. 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/ITB221300028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f7cbb63b5c05351547415e13e740f4ba8507b5849fc55824dacd06eadaba00f. 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/QZ5FN1941008.
Hardcore The Ultimate Collection Volume 2. 2013
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x573d99ac6b3bd602837bb737b15980a676d4191d7b752328b954dcb5757bb3ef. 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/NLCK41014035.
Bong Ra vs. Gore Tech vs. Author & Punisher
U Can Dance - 900 Years of Utrecht Dance Music, Vol. 1
Dominator - The Panacea VIP / Suck Satan's Cock - The Panacea VIP