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 0x118405468bb7d1776f4ef153047999722a96ae09d24a886c3826e40aa4af6ee0. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/57d98c3a-e033-4a64-b592-a307cbf26f2d.json and https://artists.proofprofile.net/proofs/artist/57d98c3a-e033-4a64-b592-a307cbf26f2d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Jabar Belay Dilam (From "Harilakshmi") - Single
Amar Mallikabone (From "Bicharak") - Single
Rajar Raja Ogo Tumi (From "O Kay") - Single
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 0x9c1d4f527c89982830a860223188850d279db70e26b303535665e0183725eea6. 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/INI112200702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00d16a41fcf8fb594a8d7739c3d851057e1ef560c8d663b647695bf953be9184. 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/INI112200704.
Chalona Dujone - Bengali Modern Song By Satinath Mukherjee and Utpala Sen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c0dbea33b43e175f23fd141b8cd8f2b5ce0d6eeed20236e7de023f257ee6529. 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/INP832102772.