Major Manna Singh (20 February 1914 – 22 July 1954) was an Indian field hockey player and officer in the British Indian Army. He was the coach of Indian field hockey team. History Manna Singh was bor
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 0xf59aa9738c83ed257cd4b65e7be19b6a3dbf1e60cf4f12912ee53aa580edb2c0. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e956d9fe-ce1e-444b-847f-270b4ba04bcc.json and https://artists.proofprofile.net/proofs/artist/e956d9fe-ce1e-444b-847f-270b4ba04bcc.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 0xf91f819dad35c78bda22c8ab224cccd22aac7ed43a29e1bbc130d0595ee3aa80. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/INS172309020.
Main Tere Qurbaan – Theme (From “Main Tere Qurbaan”)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf91f819dad35c78bda22c8ab224cccd22aac7ed43a29e1bbc130d0595ee3aa80. 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/INS172309020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb49d2301a9e915463fe820a141bba31b9c0de7130107d670c1940a97d78f1d7. 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/INS172316498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa30bb490a562e04e675e21bdce334f94a2821b8c68b15503969c860c5489e705. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:29:36Z), 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/INS172316504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x120fa9ef80b3a5cf13e6032117e6838aa84ccbb86be01bfe66673b0a65b17671. 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/INS172316505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7eb1c4fc14e8ae46d9df9701c877e2520c92f5c3ee6cedc5991cbf2b6a959f4. 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/INS172316506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06bc6392dbb18b2d4fd71868197557e2895e02046b8d3e0716811b9e0b8b024c. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/INS172316507.