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 0x268b86e007853a0e359301d5c6d245abd6d109287dd233807449edc441230838. Chain 2 (Bitcoin): anchored in block 953958 (2026-06-16T14:52:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2705c635-7c91-4642-af35-c0f6fa9085fc.json and https://artists.proofprofile.net/proofs/artist/2705c635-7c91-4642-af35-c0f6fa9085fc.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 0xd2059d5802aa6fc76cbf83d8b6dbbe200578e90ade8c71bc339d4e0d6391ec27. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/CA5KR2092152.
Mukbang Roller (Scratcha DVA’s Afrotek Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x166e6ac3fa59603e43a0e9fb0159a5aca40caccd20544f8236c496b6470b260c. 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/FR10S2281958.
Neo Tokyo Folk (Ahadadream & Sam Interface Remix)
Neo Tokyo Folk - Ahadadream & Sam Interface Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd5f235e4b050de68e64e33548d886b9695bf3ed935a70ced9823a06545f1942. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/FR2X42263939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2abb451b7dcf9a1326d207796ff7e091441ca4e900d24d5641c7507424c6f0f. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/DGA0H2436575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabbf58e89ec212ee8c00998ccf4da81e35c869fdaa63034b97f00517c063ca70. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/UKN6K2402688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdadbe7a7121be7dc311ffb8de877c89d3b556572a3166bac331711cc1d4c76b. 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/TWW532220005.
Don't Touch My WHOOSIS (Sonia Calico Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x539867e2f7ac0d2b4a30a109b714d70e094c51d723bd9641e141d28e2b0898c6. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/HKE022371240.