Sanjay Subrahmanyan (born 21 January 1968 in Chennai, Tamil Nadu) is an Indian Carnatic musician and vocalist. He was awarded the Madras Music Academy's Sangeetha Kalanidhi in 2015. Sanjay is consider
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb217968255edaf8153cdc217324576b1b08c91129326cedbda4705d956b05d9. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6aa26735-5bd1-482c-9413-698dcdedee4e.json and https://artists.proofprofile.net/proofs/artist/6aa26735-5bd1-482c-9413-698dcdedee4e.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x901a13113b82261259d42e809b9d704979700d63d0d1028f0546dd798d6d350d. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/INM6G2150853.
Sanjay Subrahmanyan - Carnatic Vocal, Vol. 1 & 2
December Season 2001 - Sanjay Subrahmanyan
Sanjay Subrahmanyan - December Season 2003
December Season 2003 - Sanjay Subrahmanyan
Sanjay Subrahmanyan: Live At Gokhale Hall
Padmanabha - Compositions Of Swati Tirunal
December Season 2010 Concert 5 Live At Parthasarathy Swamy Sabha
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83883757cc2f3f6400e0a4dbedfe1a015f84b108e8606084d35604f65106463f. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T08:37:45Z), 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/TCACF1590769.
Gems of Carnatic Music: Sanjay Subrahmanyan (Live in Concert 2010)
Gems of Carnatic Music: Sanjay Subrahmanyan (Live in Concert 2005)
Shobillu Sapthaswara - Jaganmohini - Roopakam - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3850827cef4de3114ac3b668b6f6fc57b5dd13448453b1e7e4880ec3cda28922. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/FR2X41735201.
Paratpara Parameswara - Vachaspathi - Adi - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1146e5f905e1ad4aeffd435f5e7ae21b068c57c953b6b17cd4bf23765d5b99da. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/FR2X41735202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ade5d5c8205f72e67eb670392b40b6529079b3c3e306513a4883059143c8da4. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/FR2X41735205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6506ac158a61114468a3ebef6f19c9be7e293862f2eb03d3a4aa49f8687548a. 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/FR2X41735207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78d2b4d4825d7a36e7aaafa4a5bb1bc063d57496d1c05bfc26fc5bbe54f20819. 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/TCAER2080959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa170e757ee4cd4e513cc45be5154a8ebf7184af9b6de325d4e4790f24fc6e1f3. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), 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/INUM72300326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1f82f9a03c83919d340b0567cf7d9f39b40600c874ffa3d38983e19e1c60d1c. 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/TCAHR2396518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x562ac1135c2d5448519eecb03817e4fe013cf1a25291437082fe3a0d61d57ccc. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T14:12:28Z), 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/QZFZ62471041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb015fede3e39ddeeb87d54a859d8399a2f13f4793d75fae7b382e760c8a715b8. Chain 2 (Bitcoin): anchored in block 960339 (2026-07-31T03:13:37Z), 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/INA130601149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x516ecc2e7ca6fd23e38b14df7b49827a21edca3caf8dd04b6ee8369a8d6b3a97. 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/INA130601150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbb92c154a2e6e9ebf7cf62030239dbd939b1fda07e9ea263eb178e264bbe3f8. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/INA130601151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf2d89cbc5f2aa4a7087a0ae4f566d11af941e3610c272438c104999a13e3dd4. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/INA130601152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb90b8782cfa1c54ba92347af3a04d4fc1a157da6ba6fbeb3d7d8e71a2680276. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/INA130601153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd73b7ef55128b93facf44565464721a245419771bfa73fa0d0b3b272e4a9ea7. 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/INI110273950.