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 0x3b3d24d1f43dc08e9ad2c9eb761756d431e63135ef073453c52956a27d142603. Chain 2 (Bitcoin): anchored in block 953750 (2026-06-15T06:12:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ab36fa37-6f42-43d3-8018-83ddfc186ce8.json and https://artists.proofprofile.net/proofs/artist/ab36fa37-6f42-43d3-8018-83ddfc186ce8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dusharki Dugo Laika Ke Mai Ho Gail (Bhojpuri Song)
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 0x75f36db6c367f8cebd42f74358730eb19cac0c773d753d67a50e6e3b3b7c4246. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/INS7A1557312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88b790e5cdb1d35d6df996c55f90359883ec11d601eb5ac249bfc0bcc0d4a6f0. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/FRX872428436.
Hamre Jila Ke Kavriya Jalwa Dari Babuniya Ge
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d9558d2ac181d44eab45043f74ae0d68b8be5cabf8aa0b9f1c4bd86e07f3840. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/INA1I2408273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff870744400ae89bc3e94664e9e36780a5815cd1f1178271fe0a1740cd007eb3. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T14:59:39Z), 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/ING642416757.
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