1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xf58eed60c82aae0d6794c023722f342e90b8a4a05058360667ed498d461fbf38. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/230c0b68-a034-45c9-a44d-ad420fa33d27.json and https://artists.proofprofile.net/proofs/artist/230c0b68-a034-45c9-a44d-ad420fa33d27.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 → block OTSBitcoinBlock must exist at that height 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 0xdfb4d14ad50924c9a530469666917fb22af31d1eb7b47c0503f39437b7ce5a8c. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZTB82210755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4d7009d777204824a9d698fea8a50de589dbc0f6c6de9454517f67724307d0e. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/QM3DF2207487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e9c48148451bd719fa6d6b5b03f90ad3d474a79586e206828f0acaccca33424. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/US3DF2436997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x628a788dc818d267e5db832cf20a809e2d0d8c5b4357553c7e269947ac949be4. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GBKQU2475227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x200dca38c51a0cdabb927ec643144c4a0b03649e03ae23a96eabb2798adfe015. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:19:44Z), 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/NL3M12407315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa81bc8e84684dab29b40d50bc627ccaae130bf7299326ed9bd27e78fe2565f3a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GXBDT2401349.
DANIKA HOUSE (Tesco Radio / Hoodtrap) Sped Up
DANIKA HOUSE (Tesco Radio / Hoodtrap) Slowed
Csepereg az eső (Tesco Radio x Hoodtrap)
Csepereg az eső (Tesco Radio x Hoodtrap) Slowed
Csepereg az eső (Tesco Radio x Hoodtrap) Super Slowed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05f17cdad891d16b7e150aeedb62ea21ee01e122fd37225835c741f774b88b05. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/USANG2516050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb7f515485ed3353cb74ec12be098ed4f82dfac851df07768cbb4764f048df96. 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/QZZ8A2410459.