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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa641d0aff32edbca7368653e291f3366e04b756015ae6cf5f7e3f1ced5c1d6de. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fff77c66-3cfe-4a72-bc77-c88e0e675c7c.json and https://artists.proofprofile.net/proofs/artist/fff77c66-3cfe-4a72-bc77-c88e0e675c7c.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb700505f3e2de758b47da5fff80c8be3884de4eff5373dc81a1f091298da4a25. 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/DEG932301490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x363934f5f5e20964e3fae2fe02080ce2f0c49c93ace93a65beacfaff3d567bf6. 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/GBPKF2300086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b804f6db03c490560622afdb9141a65666bb20925cd8f815928c1644a21ee88. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBPKF2300074.
Street Player - Dimitri From Paris Super Disco Blend, Pt. I & II
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dc509f08efc9313ec9e0532ee089269233bd6c96c27bda2070fe26804439550. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/GBPKF2300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafde6bc8dd477cd604cf941178a092e443a1aa7e0718ebdcd711a6670ef5fc21. 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/GBPKF2300114.
Still In Love - Dave Lee Original Vibe Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05a388b2989c5b39208bc627769a2e35de4f411882f85bd02541999008e79665. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBPKF2300031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f8c8c88d79e4c64c538bc07dce4bbd205d9df486462d46b15e883dec2780777. 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/DEG932301485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3ff3fe8e92b9a134ff89fdd0b66fd6dfd6a78a85505132bae8da10669a8dc64. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBPKF2300149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb700505f3e2de758b47da5fff80c8be3884de4eff5373dc81a1f091298da4a25. 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/DEG932301490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b1dde636bcb6ff063cee39732a61e0aaca5275eb210b9c57e0fc3e297010544. 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/GBPKF2200108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd280fbab9b2150da4fd7e95b32b6dce5bd61adc54873e14e4d9f7fdf59e1e0c5. 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/GBPKF2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x462967f1dec5ef33363b39e7c0e7fca5495005c4062f933372e2dfdae0fec210. 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/GBPKF2200037.
Still In Love - Micky More & Andy Tee Horns Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e6cf1edd356dc143f7f7d8c30edd47d7a9c71b65b8d586e689ac5bef2ad9ee3. 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/GBPKF2200112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x489659784a9d12100288a8dbbee369d7adde40694e9ba578bae3e802f85c14fc. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBPKF2100128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef48be8c77f81885871c55e8c970cbf869dc59ab8ee352ee4b29ea0ccb46465e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBPKF2200021.