Narayan Gopal Gurubacharya () (4 October 1939 – 5 December 1990), known professionally as Narayan Gopal and N. Gopal was a popular singer and composer of Nepali music. Regarded as one of the most sign
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 0xc7e31ab5de63e81d1c055d4c3bd1146d99244337aa8928af6426b8ccb13d2255. 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/cdbaa5f5-63bc-4c10-8ecb-746a3b0dad0a.json and https://artists.proofprofile.net/proofs/artist/cdbaa5f5-63bc-4c10-8ecb-746a3b0dad0a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Chino (Original Motion Picture Soundtrack)
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 0xbdf85c801571f123ee7b5c55326a269cc4c7b722a886c4ae9b2adbb183811309. 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/NOAPC9010004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a2af4df0738845860e4db3fe3d649bb3d6109b16b3eef16f5e396ab5019cc99. 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/NOAPC0610155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc76c3328d33d3350d3724f0838077a31fbdf63a7c033b2b829926407edc8726f. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/NOAPC9910021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42a8f5740048a96d7589d5e93570443be34543796783c4a60767c649485222a9. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/NOAPC1110011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaae599cab439071d171d74591cf1cea7bf073c660814a561be3dbf8ad80b7a9d. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/NOAPC0510563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd1a0882fbb048bf9da32b212fca22ee84310932ff593b0ac88c45962ceaa945. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/NOAPC0610146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x122dd85eac15788710ae969d8292f0548575c613dcacbcb0d28ad561796af4e6. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/NOAPC9010165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x217a3052f7f1eee136674683bd4a2630f0b04e48dc1d8f9969903c36f7f3ca15. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T09:33:33Z), 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/NOAPC9310032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x222ae60868a8784c2746111e1037988185a43d10735b30ff5c6975d349698e4b. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T09:08:06Z), 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/NOAPC9910143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b3ed13e103eed57fd642feb756e7bb398e3bb85a58d1c7255339cb164d0ec70. Chain 2 (Bitcoin): anchored in block 957531 (2026-07-11T06:55:18Z), 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/NOAPC1110025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1be9762b7c386a93434be4349f424bd085e3c31794468a4ff8274757a5a8b0a6. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/NOAPC1110024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6c7f0cc3bcb42db4652a90186dd4491939151f0dcb595c5f44f5f444e2cb921. 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/NOAPC1110012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x930faf78361c4d4743d3ccc900f416cc04e1865397b4c705745b8502210cca5d. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/NOAPC0610148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42a8f5740048a96d7589d5e93570443be34543796783c4a60767c649485222a9. 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/NOAPC1110011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf299e34d4ec3c1da8b3d3dba3ef9f139862a2ddb9b7ce7b8d89ca6a74128b584. 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/NOAPC9010160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x311346870a023ec450adf5a8069927d5edec6871e6d303bd28212921fd3dcb12. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/NOAPC9510326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf998d8dbe8e258d89390342449a7dfb5d69ce3846bae5a558b246a020811d6a3. 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/NOAPC9910138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x728faeebd716c3612aa8533b0332c224a697339edaaf9e92389d28ecda57a759. Chain 2 (Bitcoin): anchored in block 957531 (2026-07-11T06:55:18Z), 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/NOAPC0810451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49de1188bca426f1ed7156bd32f59df8af534512d1604c8fd19d325e42066188. 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/NOAPC9210502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdfc82006a616db9511382a3bb556f320e9b5afe81ba86f43dd38964ab4c9bf2. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/NPA0D2332848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc92aa0f5970f7f0950f62701a655b3cf9f91de09b9b9bd1c65690f437c0fc8fb. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T03:19:10Z), 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/NPA0D2332849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbde42a63c946eabe4f70e829c7abec13d9668c3fc08271ec366787d635e3f965. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:41:31Z), 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/NPA0D2332853.