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 0x038aba319ee6166bc145ae618e4772c43712e10acb97669dcba303cad79648de. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/824bc5b7-e487-4dac-ae01-578ee36e33da.json and https://artists.proofprofile.net/proofs/artist/824bc5b7-e487-4dac-ae01-578ee36e33da.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x7e6ccc3feaedf5b43cc7fb8ba4442d891a1af31f7f3c11a95422b09e39b2c920. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/INS7A1634642.
Beti Bachao Abhiyan Ka Ek Marmik Sandesh (Kumaoni)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe66eb601221fb6f6ffa3947f8706427f030e63c539cd9e0054b5a6d8b556c2. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/INS7A1634640.
Shaheedo Ke Hamaro Shat Shat Naman (Kumaoni)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x641cfd5d7a1e20172555270e385e0b7155115d16fd5371bec408a2b11e7a60e7. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/INS7A2328439.
Sheru Martoliya (Feat. Rekha Badhani, Vinod Tiwari)
Sheru Martoliya - Feat. Rekha Badhani, Vinod Tiwari
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf7dccd9edd0ddf2be474191e16dc5de0d52a81e14c25d36f2a089df0bbbd905. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/INS7A2524096.
Rangbhang Khola Paari ( Feat. Himanshu Arya, Shweta Mahara )
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e5e026e6469277b361a0a404e7e113a56ce855288f89a75ebe6634e2f19190c. 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/QZZ432345785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd4446f8e796f3d4f2e0bde4ae07c88af8be450286adb8df2b026e177ee0810b. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZZ432377738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf9ad753e5af507084480fa9548171dfe7e1c2047d92fb351f4d8aa660fe3d1c. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:17:01Z), 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/FRX282546387.
Chandi Batana Daju Kurti Kolar Maa Trailer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x371b7510f81ab0b301e45063074b887b2e48d830784c968af4147ad75dfbb811. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/INS7A1553849.
Trichhi Najar Musu Musu Hasana Prahlad Mehara Trailer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92cf486e93c7272e536729dcd2e4b94514e567033f3aff292499092d4258babd. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/INS7A1553856.
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