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 0x87fd96a48b033564c38ac24d33e3c4dd05945ba154ca758aadef7ccac53739ac. Chain 2 (Bitcoin): anchored in block 953746 (2026-06-15T05:25:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a2c8798b-021e-45e6-bce0-ff574e288735.json and https://artists.proofprofile.net/proofs/artist/a2c8798b-021e-45e6-bce0-ff574e288735.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Gana Sagaram (Live at Sri Krishna Gana Sabha, August - 1984)
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 0x8340c1827c2c8af585b956b0212ba4a316f5fe360684b8d7e5754cdd6733af53. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/INS450900389.
Thillana - Yamankalyani - Misra Chapu - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6192ffc36a10cacef04e54a6af6ab913dfecbf0e8e595fdd8b36022ced507a69. 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/INS450900386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9458b9d3c8bc0fa628cd291861b96ef86b66e94a33a48af388b2b551375ff89. 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/INS450900393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d080179664e53578f7c31b9d97a8451e5105a2f611a19507066070e808dce4d. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/INS450900383.
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
Manasa Sri Ramuni - Mararanjani - Adi - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddf1ba8604c0f3036e56c3385b71ef927ba95611cb4ab9000a1078abfb74db2c. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/INS450900394.
Amrtavahini (Live Concert at Sri Krishna Gana Sabha)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70a5a1ebf2297431355eea62727165863de7cc2fcff60dafe12179e2de093a81. 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/INS451000555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25ca3cf2c1c021f34027aeb9b5567264b5aadb7a7ea9230a3525fcb4b11f4553. 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/INS451800022.
Violin - Lalgudi G. J. R. Krishnan & Lalgudi Vijayalakshmi
Bow to the Violins (South Indian Classical Music)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc220cb89cd78cf57d9980ed8d99c37e046ee4b3e731aef4a9072a02e5e3a0d3d. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/ITI400800121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60e7e6a1a6b5fbd0603e890ba99cbe1330053956c19f95d4f118cbec0004d17d. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/ITI400800125.
Valli Paattu: Entha Neramum (feat. Jairam Balasubramaniyan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44fde3652b9f6ed1b8b810ff23fa3b27d179fbcb44fbd0dffdb1c3b4e149f66a. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USX9P1444433.
Ninnaiye Rathiyendru (feat. Lalgudi G.J.R. Krishnan & Pradeep Kumar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b0e2086772a38f62133781bb92442b75f49f654a9c2c040d997b093dd43c26b. 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/USX9P1444434.
Theerthak Karaiyinile (feat. Palakkad K. L. Sreeram)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd00ea379a0bb9e419620ab3a5417a99f646c8a3dc9cbf1135979d4851c42894e. 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/USX9P1444435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f123f1d2fb63623828230425ef13967a60e7fee4720511a70ea69df3ed889fd. 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/USX9P1444436.
Ninnaiye Rathiyendru (Karaoke Version) [feat. Lalgudi G.J.R. Krishnan]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8648cb2c07ae0f6e6738a734240728890aef1c30b4cf3c8452ef9d0281d2cf84. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/USX9P1444437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a11947ae4f68c25cb510589f7f6f71498e23253d622d96047a46f4c18926fac. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/ITI400700070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89508ec6e63cfc56c98dd6f20ead504f109a5db8800ec4a65a7c3e83ccbc031c. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/ITI400700067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa182e98bac74ecd3d489715b1f1442bb5ceff2ced305877314a046c504a1f387. Chain 2 (Bitcoin): anchored in block 960231 (2026-07-30T08:33:28Z), 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/ITI400700068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaec08b02cc963bf01ac62154d6daa49254dea6a1f1b5051390bed15b98f02ec0. 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/ITI400700069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x395101fdb9972f8e35cdfd0469ed77dcd1ad1b5fb53d6aa3eabbde0c4f9bfd88. 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/USQMP9500007.
G.J.R. Krishnan and Vijayalakshmi Violin
Lalgudi G Jairaman the Dance of Sound Violin
Carnatic Classics Instrumental Tyagaraja