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 0x57f0c8c54e0bce63713aa1cd6f9f5fe78bffe6b5d4c64ab2cee59234501203ee. 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/db8d9762-a79b-4548-ad46-e96426e73089.json and https://artists.proofprofile.net/proofs/artist/db8d9762-a79b-4548-ad46-e96426e73089.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I Love Disko Warp Singles Collection, Vol. 2
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 0xb33ee11c356acec8aaa83ca17b557dd1f5d3e4cc9dc94a39acd0f1217082e363. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZHN81964360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e8839ccb09d556fd1b32733a8fbc4c1f0ef32e95cda717afc2ac701df352c41. 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/QZ5FN1883654.
Space Space Shooter (Speed Run 2007) [feat. Kick & Punch]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e8748fc986461081a61360b4aa6c72fb579c9ab886382c4b713d3d924eb5029. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/QZ5FN1884022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb3e4da90432cf86ab79f51ba6a40a74193f42a3901e2277f0e6e01f527e988b. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/QZMEM2064880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9357f3657fbc896fd41354d0f7849134a277c0589b824a10a2699d622c2f8feb. 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/QZ5FN1887164.
Dumb Boys (Re-Style) [feat. Becky, Pimps & Whores]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6677bb2847e45fae9cc90f8fb7027ebce0f95dd8d8b38d1761ecc731e967a7c5. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/QZHN92054825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82fe8a07f936d700dc78017a1632029326c7f5ff08abacd83092d748283cc057. 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/QZHN92055880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8e119faf38b176cb5198a89b0023ededb853a8db28dcbd735e9a7b1cfca168b. 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/QZ5FN1897180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c347d5205f8cc86a227a7d15def19d7afa9b2d2575811f626eb96afb501aefb. 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/QZMEM2064881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd374a1141f3e4ee7fffbee6fa05c0360bf61b20d5a3a4892dd4aa9bfd4e79368. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZ5FN1883755.
Oh Oh Oh Sexy Vampire - DJ Shimamura Remix
Oh Oh Oh Sexy Vampire (DJ Shimamura Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fb8c862a6c118489f23acae4e1fb5f2c9f9c3042037449cca4c3c7d22364ce6. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/QZHN81962849.
Less Than Three - Ricardo Autobahn Remix
Radio Gosha X Disko Warp ~Living a Colorful Life~
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x003b1f86c1a1f8f7b02d75fc5b301dfee98fbdfc44a69e99d01ab03b66ea5a12. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZ5FN1883655.
Oh Oh Oh Sexy Vampire - JUSTiNB's Video Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb33ee11c356acec8aaa83ca17b557dd1f5d3e4cc9dc94a39acd0f1217082e363. 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/QZHN81964360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4f371c9ac98ab2d89b8ca4645b101112bc38ce81baea8d2523615c710e86dcc. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USLZJ1815608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0c477340912a81799bc78ef461680ba18fc411eb907bcf1f71c677533def614. 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/USLZJ1815609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9acdec8aa567d022561689a9c96f27988eeebcfcdf089427219738029372847. 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/USLZJ1815601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a4d3a7a10078206ca23bb59180700a37630886cda7047fe34c092e9a1f6ddb5. 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/USLZJ1850326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80c78934b9cf28de1f9e5dea9ac0dde7ffb9d45e08264639fe7120a154d58f11. 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/USLZJ1850327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa706dac77d9f19811683aa3838aabb72e1e45008912a0693d8d685d67d065a89. 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/QZ5FN1913267.
Oh Oh Oh Sexy Vampire - Francisco Gaitán Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf455238adcef9c8b9e58f5ad3e1fd271d6cdaffd65e7f701d76c4eb5dffc2a67. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/QZHN81966698.