Kundan Lal Saigal, often abbreviated as K. L. Saigal (11 April 1904 – 18 January 1947), was an Indian singer and actor who worked in Hindi cinema, which was centred in Calcutta (Kolkata) during his ti
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 0x585eaa687ee1598c8f1771b9aad31f5ac305f479ab94b8f46a98b5cb2740dcb8. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c7ec691e-f054-4dfa-a1f3-8effaf260998.json and https://artists.proofprofile.net/proofs/artist/c7ec691e-f054-4dfa-a1f3-8effaf260998.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Indian Superstars - Three Golden Legends, Vol. 3
Dil Se - Unforgettable Hits of K.L.Saigal
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 0x50cd1162386f0f5c01d2f3ea4b430a50358df80900cd2346e56e03c36b5360e6. 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/INH119501070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ff0ec0a95145daf694d2d47e9d813d846732893f4adb59efe0ab38178cb7a66. 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/INH119501140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3c4fdf4fe0c1c3c5034932943f4fe5bc5eb4e11f4d05fc6b8f064090e334218. 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/INH119400070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2797c7df9fce42a090c8e824d47d46fb6a53cc2a9e65fa6a3a99cc7a9c401bed. 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/INH119400210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f85f5348944d321343ab73dfcf4fb4b014b63fb91d49a47cfe10f39b710c8f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/INH119400370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb707fc6890769debce0c5e6c29fee7ff277f695051a0533b9d316672de50838c. 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/INH119400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9101d277d8d29fa16a8c7c18f8946e63a216640e707a814b2ac0ede1b7b15526. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/INH110901814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50a45d75bfca03b839ee90f4e0cdc8da99449108aeb8cf2a700181b2cb56b030. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/INH119400320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6b4c03fa77511056c111f9cbe45cd46f3c50d3a99a24df9bb95e93f0bc51fd2. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/INH119400130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61850b282b7a00c7b72fb0b5036947b972046d07165893431368ed16ccf95c49. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/INH119500970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1627cbf8cb192f324142722387ccca372a69a1c6f7438d179a21511dff62da1b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/INH119400240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd27cf9e6afa0bdaa97e3cdd270bf03401941b603623f7bd3f36af13943631517. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/INH119400060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e6ec76df578ce615e8a72a1b3a832cd0f7e88c2916465e592c9e55caedd0fe. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/INH119400220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36c498d4e5d144a9b113d3b9c65d1654343f1a76ee518db6011b97c2d8effc4b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/INH119400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd656ab401ad4043ef22fba0930157e8578eeeddfba0bec84eecbc277a95ac524. 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/INH119400080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x348c2a11e601852a31bbc7831dd5272da9ac82459ccb102b34a7602a1c31926e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/INH119400100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb707fc6890769debce0c5e6c29fee7ff277f695051a0533b9d316672de50838c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/INH119400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25cf85686111446bf8b3dc2748ef75b350f940e2dfcf4e8316a95e7a06b45b79. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/INH119400120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6b4c03fa77511056c111f9cbe45cd46f3c50d3a99a24df9bb95e93f0bc51fd2. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/INH119400130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36c498d4e5d144a9b113d3b9c65d1654343f1a76ee518db6011b97c2d8effc4b. 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/INH119400020.