Sangtar Heer, more commonly known as just Sangtar, is a Punjabi singer, music composer, songwriter and poet. He has written songs and made music for many singers such as Kamal Heer, Manmohan Waris and
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 0x32a2fbcc124c32f5ef246a2810f044e0d839999e25c15a1121ca0eae0f95f373. 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/5fd05ad2-fb62-485f-b396-754b726eb696.json and https://artists.proofprofile.net/proofs/artist/5fd05ad2-fb62-485f-b396-754b726eb696.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 0x0084eefc9f26931f1a9ac830c73ffe58c0fef620df416bb62818ec98d77e564a. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/INT100500204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6097071f498db43c7bc0570fc24c07c881beff159f6b38d677b7ef0d7ba92abe. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/INT100500206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da694d2558f9b820a208f6739f6c74350c193eb5b732687ae1320aab6bbe27e. 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/INT100500207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb37f8c1fc803d13370097ee75761360b8f49901874d462df82d9d723f72d7d13. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/INT100500208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa432c831d021c68587fc402703f97ef1e4cbcf358661e79ec6b6b5eeb06340d. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/INT100500209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff888260a4fe4b97bf004f1a42edd3d44922696481528a01516d6ac78fa20430. 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/INT100500210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0e8063e59daebb4ecea061d33fbd19954b21abea6d8db175c5c85992df61ca7. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/INT100500211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b607ab59a370007fb578d22a38c7942702108a3dd126b8fd97a27cf143250cd. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/INT100500212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5755efdbede06e166461be348f72ec6fc9505aaf645ed0b4ba229edc93f08edb. Chain 2 (Bitcoin): anchored in block 956748 (2026-07-05T05:55:59Z), 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/INT100500317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd78b9f665bf601d462e5a764742548ffa49f51172e213797af1a4034a59488fe. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/INT100500318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c950b87d8f5afa84a9cd03804d86330ec13ba767695b544001d203f2da22b7e. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:32:39Z), 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/INT100500320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa73bbce05ca001ea79cf8aa1e0fd221243e6365fb9409ef6ef8a100cb4b64d87. 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/INT100500321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25fbd6500e2794990632ad9272dcca6811699ae1748094a5e4f78d0a5b20b84a. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/INT100500322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9351f497793edcca832e270520594ac0dedd5b3dd673f96e2e5ac7990f8205e8. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/INT100500323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3f85af81f1427c8c45eb12417652b762f841a1579605af80539319801b5c7db. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/INT100500231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c49383badaaa907183f4c80854586c3fe6fc5ed40ed4f8a222bbfcd83249e17. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/INT100500232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d434550afee69d3fee89c70f32e5a576d335c6936eb496950699fa8e43f5c25. 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/INT100500233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7049d86092abf33de4dc3441164f6945ef37da289340299149e083b9bc8341a3. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/INT100500236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13ef6af404188736e68ba2df0ed1b998b00a8253c438490b545ec332bd676954. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/INT100500239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc18997004ddc6bd3f738290a81b489fc2f2309e288a7242f80385a9a069e47e. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:45:42Z), 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/INT100500240.
Udada Panchhi - Punjabi Virsa 2015 Auckland (Live)
O Shera - Teer Te Taj (Film Version) [From "Kesari Chapter 2"]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b543da1868d4fc1c8408908e5cb3191051be1945af229b6dabc168561e54e00. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/USEU22512405.
O Shera - Teer Te Taj (Film Version) - From "Kesari Chapter 2"
Kesari Chapter 2 (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33ba81ded25c54395158b84375665ae07c08afd66e00331f51acdc9560538273. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/INZ031418282.