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 0x2c58feb1991731f0bc12d0e978f107de77d6cc904399cd744dacb39e8263a216. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a15d6903-3a73-46c4-8388-d9e80fa46a63.json and https://artists.proofprofile.net/proofs/artist/a15d6903-3a73-46c4-8388-d9e80fa46a63.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 0x3754336e7d8171520e417fc482cd366012fc175637b0161c7cf8c794e56a99da. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TR3680800034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe76a6a5cb7cee4b348fc302f8d3f638c6c6e8fe69f6b7c788b4b88daf4eb0e26. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:58:53Z), 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/TR3680800041.
Desmala Govende (Grani Delilo Halay Gowend Şemame)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25a0be1ae12399548c3d245d43fcea6060b1723cfd0917b474b9494972504412. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TR2730800182.
Düğün Halay (Kurdish Music Govend Halay)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08a94d0adb2234c2a0adf0f75fb98280e3ac7c23c84b63a35773daeccce68918. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FR59R1615108.
Grani Govend Halaylar (Kurdish Folk Music)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe92479fb8e40070633b0a940598be0cc6ac133f2b642fc23e61f8ae80b094ca0. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:01:08Z), 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/FR2X41737820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29d1f9939f6bb52bdb4c2986eccbb4f6b951ff14ebbe1002a1bf4f318a174951. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/FR2X41737821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2434190a589231a268e114ca00192b056c6cab6d01e58cc25e442e1513df9bc7. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/FR2X42077506.