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 0x031fca5a6d1aa9ad66bc3a6184543f3a683aeb40b434edddf166086ce1b811de. 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/6f0eae2f-b661-42ed-90bb-a3407e2e6330.json and https://artists.proofprofile.net/proofs/artist/6f0eae2f-b661-42ed-90bb-a3407e2e6330.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bhooter Bhobishyot (Original Motion Picture Soundtrack)
Mukti (Original Motion Picture Soundtrack)
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 0xbad940350bfd281813c3bd9e088e2d48704c94abcac35020cfb8fd48618ebf94. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/INA691404102.
Babar Naam Gandhiji (Original Motion Picture Soundtrack)
Monchuri (Original Motion Picture Soundtrack)
Hothat Dekha (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x117f5e175665a87b8beb5af132c201e1b7daef24dab3c01ddfe2f8e91c52281b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/INA791500505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75bdb664984802fa334a9871be092033d5c70e16b9c130df1769f93c535c7db2. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/INA791500506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3173db9c9a06e9b3cc3350bb154024d036a03a9398e0baa978ba55b38cf795fc. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-19T22:41:57Z), 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/INA791500509.
Benche Thakar Gaan (Original Motion Picture Soundtrack)
Arani Takhon (Original Motion Picture Soundtrack)
Baranda (Original Motion Picture Soundtrack)
Ishq-E-Nadaan (Original Motion Picture Soundtrack)
Kurban (Original Motion Picture Soundtrack)