Sunidhi Dushyant Chauhan (pronounced ; born Nidhi Chauhan, 14 August 1983) is an Indian playback singer. Known for her bold vocal range, she has recorded songs for films in several Indian languages an
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 0xc4b73b6d4ed16fe5e82109253975ca7a694d255997b711c6ade2b16a9b2a64fc. 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/71d29fc9-81b3-4547-b6b7-96dfe1641ed9.json and https://artists.proofprofile.net/proofs/artist/71d29fc9-81b3-4547-b6b7-96dfe1641ed9.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 0xf53a02cf45e8b8f1430e2323a590109541eba2b02280761a24447a8e3b83d65d. 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/DGA0L2389165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7570dfe73277d392cf05a1d0ba8529b0005303fda4c1fb0fa08ca03b7168b7a8. 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/DGA0L2389166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x451d4182c383b25d938f68c2433784319189739ecc84829d23a3bbf0fa1ff1b9. 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/DGA0L2389169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ed78e3299e290f444513d4dd17a25f633421607ca217627daad016c2c44f3fd. 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/DGA0L2389171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c53ff183f69b9db065e64c201dbffa029ac707d1a995b65646eb832732fcb50. 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/DGA0L2389173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f087aa7235eafd3d97be5e0e1a18dd918939083ce824268323f86e21cb95618. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/DGA0L2389175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76a53225d3a98d38d152818a5bacaf561081af5e8abe912be397f1e890e447fe. 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/DGA0L2389177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f051bfbc6d295f525176c3deceea7185a5be2af57ccd50aa153671216ca5bdd. 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/DGA0L2389179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d5e1c7c3cc94f9b2fbf356ef7bfee2d82a4c6dbfcd3d1d36973a871c340968c. 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/INS181200400.
Hasee Toh Phasee (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab43bb69ccdd9b1312e378dea957a3bb472b57e04c80748bf9c222051efaa6c2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/INS171301716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe388aafef8ad02b452b5bdac43d52b8a205368757cb486d73ef7e4144995d0dc. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/INS182300965.
Dil Pardesi Ho Gayaa (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7586a9cf240e561111b74c213f0d093404974e10012ec2f1fdb9c66f467d037b. 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/INS170300013.
Bluff Master (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x877fa37746335bd0d198cd422734f6322cfd5d48c11c8de84262ca637db5bc8b. 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/INH100511018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd33a22d062a4ed54db4a6ea3cf9bdf9dfd736bcbec7c05cc57bc2a5cdfbd8064. 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/ING642203414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2c161217d739b716741ef083a6d3055f37438aeb0153b68efcfafa89ebf6c81. 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/INS182300964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x605113f1014c081079268b3c658004b00ec061bfb80331f2faeccdca3f6d785e. 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/INS182300962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42f91b56c917a16c763778ddcd3b8370ec62890304fbeff04f5809943ea25a28. 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/INS182300970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceb949b4b36e363e2f1098deda5a7f01909eaf1672b1e8f704642e72561cdfa3. 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/INS180500173.
Race (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa4e5a74f1faa03f6724e3c519202f5c0942e59dea2871ab95de60fbbc4e1f8a. 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/INT100700311.
Tanu Weds Manu Returns (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x681c1143e261056c7d75cb7d2a56cb737e4dbe9c6045bdf7c0107b9ec6101c43. 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/GBSGZ1500343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b1ac7b2867d661b6a4673fabc22fa7b4a34b224bf6187fd0f511985798d5a2e. 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/INS181700044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5071a7572a33cd44ed6a2895916fe7934678ab02ec676e10c175ffefc390abb5. 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/INT100700318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bc1d69274e4fa49707e721d4e5569f288a111aa9a1fb5e82401e9967f0cf277. 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/INS180806128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd72c5a8387a6d0dade846f14dd7470f60469dfddd65e145e15c7d1d44ba61285. 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/INY090900031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfce448e068b5e8cf17a17f28bd240f517d1ea06beb1887d5f7afb6df9bee8009. 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/INS181700069.
Avakaya Anjaneya (From "HanuMan") [Hindi]
HanuMan (Original Motion Picture Soundtrack) [Hindi])
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae3257559229b3926a407969c67ad0b98aad590d41f49425312f308f9a36efd6. 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/INT102305988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc690d9f602430ad999fb8e6daba38dba800db194143c87d311aa45f2116c89c5. 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/INS180704916.