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 0xaf4a891262b5db5f994604e2f9aea202454f882b1d57e92f747c5d3878243564. Chain 2 (Bitcoin): anchored in block 953641 (2026-06-14T13:54:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3a909d74-6256-41f8-bdde-759487fdf516.json and https://artists.proofprofile.net/proofs/artist/3a909d74-6256-41f8-bdde-759487fdf516.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 0x5c0f3c2962ad54ef1a3b5e449ebd82478d3cf4353f003ff6843b5b6d17e542b9. 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/INP832101718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1db143f315291cc791322334d4d39927c678f3f462c911db7b02588b3af28ca4. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/INP832101719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68b80cf1192e5d28cf545ae6f0f4b93b6bbb5685d84032367ba8d39d696d89ee. 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/INP832101734.
Sree Ramkrishna Bandana (Sandhya Aarati)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1d7ff701bd3cad0679ffb2a5a0f32e5f5a3c6eeef46af7051d6109ff9fdf7d7. 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/INR191700056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8590f543723f6b18097a90a8fa867acb40fc5be39fb549d7457ba8d3c9de5d2. 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/INR191700057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83f4c34b3e48250cfe6dee5009fc91d7ac300d168ae32d7ef4c54ef6003bbd04. 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/INR191700058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f9ddd782377d9435d5f25c52e9d67bdd52606235c73516206140cbdc7fd472a. 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/INR191700059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f7f86a53b7e0152d84c5a8a22922fea703b06b8047e1d74757481a660bf6a43. 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/INR191700060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1e4e644f0eb5b8e69b867249cb4eff7d888feb1430e18de99fa520e7ec15d05. 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/INR191700061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed09a7a8e2860e685f6b0b4b50284c64b610745565a7ff1d5ed39cf2d359c00. 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/INR191700062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94af822abd80bfcf03a9647e713b0a7ebede38cd310cf40787a26b2ae5b69588. 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/INR191700063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15a1284e9686612a7eb4db63a8c4c68c2937f9a869a4711e5b6c3b2b83cee5ba. 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/INR191700064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4526cce09dec8d38df3dd87afc33a5700104b6837e142c7c1bcca4f48754adfc. 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/INR191700065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d177c45ff596d3cef9b1128e84d54c0c296bafd4763af0d180186bdde94473d. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/INR191700066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x878c342a1ad8c79c18bdb906b3b8bc3998e32745e67f0a5bc74e325e49ee474a. 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/INR191700067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43f3868b22a1277dcf8ca59f5d698942802d3e076c37599927cc1cfc3fd455f9. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/INR191700068.