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 0xa5fa62513a00c4a55fafd994618fda7b73e1e47cc1a1b005add83632d79d7701. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f37dd4e5-40fc-482c-a9ae-e1555378c5c6.json and https://artists.proofprofile.net/proofs/artist/f37dd4e5-40fc-482c-a9ae-e1555378c5c6.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 0x3ab0234f2f36a576b7e68d3ef0bba1292a4d3d8cb7a3c97f0b68fd70aeea5d0e. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/INV792411127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbaa65cfbf77f78f3fd1db2d13e04382cbc5015c82246b2686ee0afb786e6bdf. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/INV792411304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f43a39e1df38e946b437c9ea67e3958cb482c25f0138b9aa85b40e5c5c1fe90. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/INV792411710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88d37f01bc324b391b9b8bf3757131894e81e73681165d93b0603e3ddc06343e. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/INV792413670.
Shri Radha Shri Radha Naam Jap 1008 Baar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fc7dd2df9754221d1a366052ac31c4e3c32ef9aa1df661219f3a4cc8c733d0e. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/INV792413908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93267aa1611077bc19957665456c5e6cf0601aa7f0b10a4dc9bd21c48fbf85cc. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T10:09:30Z), 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/INV792414927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09ee77672d60223ee435284a11ccdad912d91af9490bc8c329ab6e33ae7d1b5d. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/INV792415450.
Hamre Sath Shri Raghunaath To Kis Baat Ki Chinta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab663990cb404bae71afbbb3a1da1c2d24c692b72f2b4bcf1a0d05deceaa0c69. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/INV792415643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3320190977fc88365af9ee67b4963f2a7e5796391f7b09ccb8eb0d59a71539b0. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/INV792510561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aabbfa9175fff47c78a8f1c21e542a75d6ed46e56f068be3f0823832caa23b3. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/INV792512128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb38df5f3ec6c3461d0fcd4441203a24217adc87005fd4d6f37b84e0c4dda00dd. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FRX452540261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea6238e86982fac3de60206f8abee395ef5d8d63e54c1abb6616cfc958119746. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/INV792514896.