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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff7995f4f97cb06b6a1f13866d0d86bd2118e9b4ab2d0a7390702e141216b1c2. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a691e8bd-4b6a-4d03-90cd-0b1a79815af4.json and https://artists.proofprofile.net/proofs/artist/a691e8bd-4b6a-4d03-90cd-0b1a79815af4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bol Bam Bolat Raha (Ram Swaroop Faizabadi)
Raat Bhar Khela Kare (Ram Swaroop Faizabadi)
Piyau Dheere Dheere (Ram Swaroop Faizabadi)
Marela Hacha Hach (Ram Swaroop Faizabadi)
Maiya Ke Darshan Ko Raupayi Lage Ho (Bhakti 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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a537e76cff4399730fcbe632e4a0ccad7463bda11d082b32532ad8b60388d5a. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZZ432391582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x561f810f57a231e9ee803c7b32685b66ea8d2ffc70d7a13e1d8ec28ef65276e2. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/INSQ12500021.
Meri Gadi Mera Bangla Sab Tero Bholenath
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddeab05b978917156a0db3f0030daabac9309ccb85c9779f5a17125009fb7c72. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/INE182574131.