Kundan Kumar (born 1978) is an Indian politician from Bihar. He is an MLA from Begusarai Assembly constituency in Begusarai district. He won the 2020 Bihar Legislative Assembly election representing t
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 0x559e14b93fd4f6d6537ca2c26419f37ce579c262a8e26db0877d549903e2df94. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/788de043-8dc9-49ee-b730-435c514f1e33.json and https://artists.proofprofile.net/proofs/artist/788de043-8dc9-49ee-b730-435c514f1e33.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 0x609d5657c143e0fe8a38419db2d7e4fbed6d297d2e8703c2ffd8846e78f40005. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/FR59R2432858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a7f508cdc6eb1a1ba1d5cb8422f61a29ff92e832d612c4e7e58c2fd6c2eae88. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:10:17Z), 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/FR2X42464662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88f181a4a560221306947d0e7c9c024a2b1f47a77d30e5bf2eccdb36ebab3ead. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/FR96X2427582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87a801edfe7d83ef155d58846dfb37e61223ecebb871748da62a71da5e161c41. 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/FR96X2443480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed2ce1b5dce4f05b807e6f299bda1c4ac718434e05a8c26801b5537106a6183. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/FRX282475106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d98280e8ce276ee41bac1820a238af8b6545c6e333f5b7b372ddb5489db266e. 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/DGA0H2425609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x275a0ec511ca6476a766730cb881f5a7f3d4e0661ee3d10e81325fd8d97692ec. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/DGA0Q2424936.