Nabin K Bhattarai (; born March 14, 1974) is a Nepali singer, songwriter, and composer known for his work in Nepalese music industry. Education Nabin Bhattarai studied at Budhanilkantha School in Kat
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 0x2ff9af412ad99c430ed43359280aeef0ffb26476011ff7674ffa6dbd4f358d59. 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/feecbd27-0e0f-4529-94e1-af725198a2b7.json and https://artists.proofprofile.net/proofs/artist/feecbd27-0e0f-4529-94e1-af725198a2b7.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 0xb4a3dacd3ed10da56e066b51a97a2a12c360f79e9d4d12959561231b6d8e7ab6. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/NOAPC0916540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3535903f8e1350b7f66c05156b02f2fd3a3b053834e5add15101c5bc721cc452. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USL4Q2184539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd895bb422a2d92e7ca038efd293d19fdfe8654d89b6262dbd09ba20a93a8be7d. Chain 2 (Bitcoin): anchored in block 958680 (2026-07-19T06:04:14Z), 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/USL4Q2184541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa69af797e665fd86dd7c1e506ad46d320b7d68d8680d00aa96a409cd525482a. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/USL4Q2184545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb8328cd7a5edec54fb1db29e4425626eeada4dfd42b1b32701f38f8805c7e63. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QM4TX1848092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a9aa2e8c28000c091b3a9093182f15b81d94d7774854c3a87cb7a28c70cb4e2. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:04:18Z), 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/QM4TX1848210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7db041183c6f9a11044065bf6e0609a0cff74b9de69dfbb1092c82ea7ee86958. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T01:59:59Z), 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/USL4Q2178627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96de7f424103bc2f771de3ba5f5c07f72c2849893fc91c2de7c706a38ea490fc. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:32:08Z), 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/USL4Q2178633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7687b965ea46b0a44392eb50646eb3655dcb7cde0486214467fe2ffbc4796a2c. 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/QM4TX1846164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed90ea8d75bf04b9ef77623fe602a6927086ed497ddbdfa6a71d5d14865a270. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QM4TX1846166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d238e23e2deed0b10e84caa2491bd714ef7c4ea613c3eb8d43d1933233dbfb1. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:27:27Z), 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/QM7281926196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50eaf20682f57b123b27949f7eea95e14c4261cf33af5cdbbe39caaf9287d73c. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/QM7281926197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22bce57eb8ced9040dd411301f06e446d4b132e864edd839b1886367e616e83c. Chain 2 (Bitcoin): anchored in block 957644 (2026-07-12T03:18:52Z), 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/QMFME1959178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5be9cbc3ff37edabe2fabadcb077a5b5d4fa8ffd1cbccdac34a587c71754bcb0. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USL4R2102351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54eaa22d2ec7d25bf8f89d511190c6447860408b91d1cbf5d87a6ea72c733f66. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USL4R2102354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcba432a2447eb24ecad0050cbd7369eabfc157fb075b1979a90bf5e1de5ae431. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T02:18:18Z), 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/USHM22210585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1995267e30c5b04b039d54aa147b6687c89677a94decf552ca9f11d241838454. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USHM82285038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8896e5c41a328a226603ebb202aca47eb91efe8b264e1a6340902015daeb182d. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/USCGH2300405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09902b760879c2cdf3ac5c664553b0ad6399e47af85132658f9834c92618f263. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:35:52Z), 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/USCGH2300406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97103d278abee6822d649f40569102102fde69c1df99c8bf1fdff6b51f4b1744. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USCGH2355514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe825138acfab7cef7572db196c7ee5b32a34dcf9680612908f9aea7e842388b9. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/NOAPC0510176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63c1f0f0298bc899d3a9cfcf1040a0f69d677290bb622fa610f9d8604d74828a. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/NOAPC0510177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba1d6472247cfec15df51a14b916ebeecdb3649d2a40b3186c4f34ad5ca7bfdc. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/NOAPC1216201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8cce07595200329a87584cac1f8de2ab9ea2b20f807bb76c2288d9e04f3a112. 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/NOAPC1216200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bb913c28a2414314b0d0cea684c27fc0dd9c6163931cee05030b42d4394f27c. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:03:46Z), 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/NOAPC1216202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2114561d9069f0253f4a09a525fc07e08621e774ded277ea26d64898cf303ea6. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/NOAPC0510158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd65516cf47087cd915a3d3c4ccbcf85dcc05a98e13a2c7455aefeba2ff0595f2. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:17:09Z), 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/NOAPC0510159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe463ebcae6c401e5094f62435e8c848ac98e84852204a4b907409c2bd93937c9. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/NOAPC0510160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dea5a9217748f76fe035f0283eb26bd671338771d2dfb18737cc8262e6be2b0. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/NOAPC0510161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc218a30552b2a6b9be776d1d08e095bb547542caf94fb3175afde416c7efd73. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/USHM82377453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8dbc4ecc91f91a05ab85e38ca06924ed1744738df1fc3dd0c1a01816b003ad1. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USHM92582026.