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 0xa00390205939b96949f852ecc67dedf988c306d7e3f3c58a78fd0934123eef7e. 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/4ad797e2-f5b5-4713-bc17-a5fc27b80cc6.json and https://artists.proofprofile.net/proofs/artist/4ad797e2-f5b5-4713-bc17-a5fc27b80cc6.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 0x7633a3d6896169db3379498a2677556156b1aac59284913f0683737500d69a84. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/INU101212446.
May Pitayana Dukhvuni Jivan Hoil Artha Shunya Re
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c5773a88e30b55e272526b0c94263e6e7c63cd8c0f843bf56f92fc31ad58d2. 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/INU101212451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f678171ed9365b84cd1b0c46dfdb6fb0e8e7eb531338d2d4f0248207e2baae4. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/INS250200647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0b64663462917d7989895532a2e4245208aacbdac2da313a93ae50ce883189b. 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/INS250200648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd52b72740e09c297008403c52256b81b83f037f34d72a1236eeacd259a5c0969. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/INS250200649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x490b423e3a203b55a367c2b638f171a9059790905f6e27470e76777e5eaf2fbb. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/INS250200651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e56e106d94f41c71ee99942372c1713aaed8f53e8819f3bbc05a501a7089a8f. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/INS250200653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bfd23278aa44865d805bb5b7b8a80922ad059dfbf767725b3d8d9d1292e7984. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/INS250200659.
Sampoorna Kakda Aarti Bhajan Va Haripath
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16af33abd8b7f810ca1709f479489c5833ad2059f69a99d4a4722160c33e34a2. 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/INS250200660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ad6cbb4bebf97293160b4ec0982f1853decb71ea976035ec2f5335945b5e08a. 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/INS250200661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c44276a5d78fa97d74c49248528c53f5645b69204d42ed598b0f3955ec7e189. 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/INS250200662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaf0b8881082b8242622538f57f6c187c94e5a667ace062bb2e6c8e4d2fd6f62. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/INS250200663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1242971ee82c46fa1de1a1c2b08274a62b998c7b3d7fafe3f1dfbe559b3bf4c7. 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/ING922200766.
Jaganyacha Paaya Chalanache Bal (From "Tukaram")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e1af8ba21b34c9c4f0fe98469e2a79bdfee5a7d04145b6b4c58744fe9e4f29a. 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/INE151200017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8ed0a1a6778745140bf6ae8dcda9d2018b5d65ac8b8c0673e4e2ad09e4ee79d. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/INV792302612.
Chhatrapti Sambhajiraje Shivajiraje Bhosle
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3652d0d8dff057d344ef2046789a5557fa1d64fa1d6f558b4f0e8e281bf46627. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/ING922200278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83deebd8562f8de63236ce94e72ae32aa6a3b15f4e689ed92a3e95906b0978c2. 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/ING922200270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05e5fea9824100d2c6e457dbdf0065b1508e6ae45903fbcb49d8bfef7e9fdccf. 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/INE182215915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x642644d6367af1def0c9ccefc45167605b14226da1f0ec19fbf67f18176dc218. 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/INR1L2100067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73956a81cc102cd2988ef30c16d78915f2d91dced0d324b16b89adbc0170e532. 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/INS250200646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc02903e2ddd749fa23e2a2b4898e0ae0830f7ad1cb23194438042ce43b580a2a. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/INS250200645.