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 0xa83bd237e0a6e9be7e2428c1a56122c6cca3c437ca6829cdfca71bc08ea26e02. 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/02934d6e-00b2-412c-98cc-a023a2a9bfdb.json and https://artists.proofprofile.net/proofs/artist/02934d6e-00b2-412c-98cc-a023a2a9bfdb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ecstasy (Over & Over) [Special Request Remix]
Ecstasy (Over & Over) - Special Request Remix
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 0x59da9d5cfc3de3cd2de889aa48a7435e9fc9ea40e971c085e2dab7f7947fa900. 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/GBUM72004967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae0b5a482a968714b36201754bfec838da64b17bc15ac87532cf841172777c7b. 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/GBARL2400034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9073eedc4e6d5cf30985de3a59c75186577bf6c6b331d218ccd2abbccbd8cfa9. 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/GBARL2301617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83afe786e646e258629d728df801070fc612dbcc334990d5ccae65d1fec81dd4. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBJX32375032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb99e8d057cf0bda06a1ba24d7ca2aa8600529304ddca644d2751148bd6e95f7. 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/GBJX32375033.
Body Moving - Special Request Extended Remix
Body Moving (Special Request Extended Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5726696ba6772b1e720a032b39b1c7849cf2a9a564e0f26b938a96935a3c214. 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/GBARL2400035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc8c5f9d94f89aff5d44a20e40bca49a387810404b9cf7182fb9f698f7bd2cac. 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/GX9U42300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac50d56203da73b5a9c392ee3ff9fe5a87d2c0888ecfef4c4d00b1a5bb55805d. 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/UK7MC1500078.
Expander Six / Carex Vesicaria / Lucifero - Mix Cut
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2013ded14875ffeec2e559afb57765741733c82f3a015b5c879049665270ec43. 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/AUXN21800171.