Sripathi Panditaradhyula Balasubrahmanyam (4 June 1946 – 25 September 2020), commonly known as SPB or Balu, was an Indian playback singer, television presenter, actor, music composer, dubbing artist,
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 0x3dceef2977b9b6153daa6180a815a4f21bdb282938a415a5de20b6765cb84487. 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/2e40f5d9-e50d-4e08-b53b-e04079c29c11.json and https://artists.proofprofile.net/proofs/artist/2e40f5d9-e50d-4e08-b53b-e04079c29c11.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 0x71216dc3c8508ea622667524c11e1133da46e602334027d798bc32c0b5f9cd72. 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/INS3I1801578.
Roja (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96f3a28093ed5dfa7928dafd58d346e2e705eb39b3ee85ce282c128fdcf2254c. 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/INM129400226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b0c9e9f6b7c1688ab7b89e83be7f67fe6e5fdd6e23ea99b1b0970ed2ed9e275. 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/INA090710909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed73019d04cbd2dcc180df0fc91924ce2d9eab2585e275259a59ed2bffe97fe1. 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/INS189710288.
Hum Se Hai Muqabala - Kadalan (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fc00acad4a36dea166d6b1495f4f7edffe365d2edf072c1cbd6429d77b321e4. 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/INV119500200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1bc8caca5417e10552455f31caa0e84b0e1a96b30f98fac984eff891b4961cc. 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/INM129400225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31c3f7b940c2a6767857c3ca6def361c1b5e4e5ecdeb2bcb0cf9282526439102. 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/INF049900212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x032b0c45852815b882f21138ac5468051e3bf9220454e16f7573391212f65e84. 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/INA090203683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d40091955e436a03046aa46167385de75cc7141048f5288daba5179c5c1ce6d. 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/INA090931704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf42146f525f1c70a76e20791deac7a5c6b58658d79304a8b593fc9ff3b255ca9. 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/INA090931252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe444347ee84b0e7d5ea3e6a1a9b6688b163630ea6d15097a7b325c566012bbe. 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/INM129400232.
Duet (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d4f4c2536c45490aefce5e6ea4f1ce9e1dd60736fab3d0aca2abb34555664d2. 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/IND292214014.
Yeh Haseen Vadiyan Yeh Khula Aasman - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa533e79b094fcf4ca80a16a3dfffd79a72de79eedd0aec18a01888dbc0784f7b. 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/INM129400233.
Aatha Un Kovilile (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba1a6485143241e56eb8ce2964567b75766e61a954244da5e910ec86f197fe8d. 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/INV169100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3829debe10e21502117601f0a04b82f10e99b249003376c6ed5fd089ca79bbc7. 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/INA090409892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6aa16a98e6789a8cc6066a5e24dd617a25cd4d71ae44985cd4f963c83880331. 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/INA090203680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd91dcf78d359574d380d0d568401bc9c414fd20eeb27798156377021d03ff273. 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/INA090931706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1692ec24e1eefcbfa4c5f4e89cdc9202d5b5eafaadd57b36aff7a4a4989faa4. 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/INA090931708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed8291b7f84d9a7bf86ba69a145da82a17c4a4237836258944eb585478ca0b7. 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/INA090932129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e973b34e583edae6d89cb75cf3e987d08448a37ddf1f96647710f5603b05c71. 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/INS189610220.
Senthamizh Paattu (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf01fe76a2786a62bbc46a5d7cae66831565afb434ec570f4a99b90fec646613b. 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/IND292000180.