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 0xb28743610be0d7d9aebddf9811ccf2e98e4b62eb745bb4d7509cde3fe9a95c96. Chain 2 (Bitcoin): anchored in block 953707 (2026-06-14T23:22:21Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7da894fc-6c26-4dfe-8914-6a6a3cc7efd8.json and https://artists.proofprofile.net/proofs/artist/7da894fc-6c26-4dfe-8914-6a6a3cc7efd8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Jeene Laga Hoon x Main Yahan (Bonus Track)
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 0xf8e477e4e4254fbdf9abca809f7321a3787d2db7b06494b20dc7a96dc1e1e7f2. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:05:41Z), 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/QZHN82225147.
Interstellar x KGF (Mother's Love) [Cinematic]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cbd0a88f389b03cad05a7361e599324fda777bb01876948b2e6ef28ed5625bd. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/CAENV2503020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf2ddf515535be87bfd6dad08ca0459bb5ad6b53a168c114b2aab2df8cdb106e. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/QZPJ32439587.