Darzi are a caste among both Hindus and Muslims. Darzi are known as Idrisi in the Muslim community.People of India: Uttar Pradesh Volume XLII Part One, edited by Amir Hasan & J.C. Das, , pages 412–415
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 0x8a50e6439d1d6d1f0925b9e6e4c72fb1017fa0a428273b6552d1bb3bfd96fce4. 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/e3ec7129-ef50-4de5-9223-27520cfa04f9.json and https://artists.proofprofile.net/proofs/artist/e3ec7129-ef50-4de5-9223-27520cfa04f9.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 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 0x73226372d220cce17daf0feba37d137bc7831eba24f7fa78e49e195daf4e551e. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/FRX202203740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc7a342d5bc9818e599728c4dcb67b5902db4ee354b169e9b7ca642b46ecb54. 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/QZMER2271104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ed3b0bd853d974034a5a8e2398b2719eac5f04f9a04d92e2a0291084d04d872. Chain 2 (Bitcoin): anchored in block 957833 (2026-07-13T09:36:32Z), 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/QZMER2271106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaf2584450c0eaef184669bbc81ab954b0deedf71e551b4e9b61ef0a77142bd0. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZMER2271107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefb2435e97536184948a48be464d58802cdf9019832128fb0b1f34eb7bf840de. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/QZDA52337438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73d533aa06e908000635584d0ca400335729c2c08e2d50c0169e186d684a77b4. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZK6M2367421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1d5d9d5577a96c167398f3834fe5b6c58aa7e4715b273de9b0bd9192b1ae51c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZK6M2367422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0150bd054f9567a527b25a90fca956b287f1ad9dc1fdbc75c52bbf5644458d29. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZK6M2367423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x827f5f32aec4fefe2cc0e901d682fa274a5565380daf6b58746681245034f9de. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/QZTAU2385025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78fa9208a4ee88125a6a091dae4d2d90a074063f416f922ee61504948225b46f. 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/QZHN42448290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6123f5893a7980d1c8dd2f893b33ed549bf4527b48cec6437a51e5dc1f377eb2. 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/QZHN72411754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf28cadafceffae658007f71ce0d4b5c711db8b252705ce2411579b69606220a. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/QZHN72411755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78cc232e4fabcd1044f47f71a3d72cfb6ad8ba52f1eeb30109cc9dd8b3292ab4. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/QZES82492820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad583b9683cc957d04d73af8f094428189472a0f6135aaccabbdc75de00222f7. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QZMER2316486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19eea1c917498bcbff6a88b24af3a35331885f5be6b5935da3f8549fa0cf4c8d. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/QZTB52218995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3b7ea1a07e2b30b35a68de173ba567a6ef3130db616d2b6729f7719c84629b3. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZFYX2273215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19eea1c917498bcbff6a88b24af3a35331885f5be6b5935da3f8549fa0cf4c8d. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/QZTB52218995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3525017dd567d7f4ddaf017e3a857c8fd7685b3db6842d0366eb302099768838. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZNWV2008662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf82cc2d4528f8a03f81c314b42c757e42a0e8e99874aa25d8dd804d790518a32. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QZNWV2008663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc60b64141a287a567832e6e2de08d09db42b9b78b015cf30e2eaabe8b26ca76d. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/QZNWV2008664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f934a5dbcae09e909c2c11b979566dddaff86ed747348747d51e5f885cff053. 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/QZNWV2008665.