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 0x8634cbb52e8ca8444b389ea73bf247464ae33158c9b9b57345715dc1cad15ef8. Chain 2 (Bitcoin): anchored in block 953641 (2026-06-14T13:54:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3cad568f-8b6a-43fe-a0d5-8346a3b3e61e.json and https://artists.proofprofile.net/proofs/artist/3cad568f-8b6a-43fe-a0d5-8346a3b3e61e.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 0xccb317b977e10ac377d01fd9760c4f1556ea11e900a5502a33b65102bf584ab7. 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/GBFEK0700215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x681aafa301805de1a37e56b7f6f6a0f9266e48a7a86633e8607a92ff84ca24c3. 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/GBFEK0500171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92dc03e68f0ca05db3785263e90488611979ef2cda0ee237d02db219b8eaf34e. 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/GBFEK0200059.
Boomblast (Deekline & Wizard Remix) - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x364bc64b97ba2b905a0980e51c57531aacae380cdc7d58b7500314891be3a7be. 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/GBEXH1900463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x565e2d00546f9a347dcef7c80fbb34d1c1c37b1c8111048a242952eea5f89214. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/GBEXH1900466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb054812c7d43ec295c2caaebdfe8319ad51a8c20d69af00f298988bc64bb5d9c. 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/USA2P0603490.
Feelin’ Kinda Strange (Bass Kleph & Nick Thayer Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb090b5a016330d4981248d835d2fa1d786204ce75345ed6e44bbb2e25ef69497. 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/USA2P0603492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6413f6a2f6ffb27a456bce521a292d9e30fc0e7754bb23b94dd69c5a796b4612. 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/USA2P0603495.
All Your Love (Deekline & Wizard Club Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x232ee41a86645137a94ffd74e83922fa7f90f7682a5ab744f92c7d9bc6041a52. 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/USA2P0603500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89efdd8bde5b49d768d37d387c000cff22fae0b8d3fdda3f3f8dce58b25d50c2. 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/USA2P0603501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9cdbd021937279aef2834f918e32378b07272eb8372f688eb7357c3a6d89e36. 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/GBFNF0300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9846efb1390a6afa0a1d0dde04ff43a87bfd9e7fa4432677f6d01befc9081074. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/GBFEK0200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b5cd61ccd7a21e30b34cd4fc50f5ef166f3526a8e4196b87be58e04e6810b28. 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/GBCYY0600159.
Finger Lickin' Presents... Freshtraxxx 3
Twisted - Tom Real & Rogue Element Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aa4139c2521116dc74e7d29494b5f3d2eea1ab35489a5e0ed54b0a5599922fb. 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/GBCYY0600174.
Electronic Bass Music, Vol. 1: Utah Saints
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa210bbf525d5056fc7bb9cc183884950e90369f05a7856ff9478813bfe3d7c41. 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/GBB6W1310313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08dad1cbd8edc9eb3639b9cf151a64a8c0367b208fd720944933f99a95a8bf4f. 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/GBFNF0500015.
Thrust Retrospective Vol 1 Mixed by Lee Coombs