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 0xb4719d303ee562280fc62bd2f96c2a435c8fc43749862a8cf5f6df216bd5b7bf. 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/bfcf98b9-ba7b-49a3-a924-35eb4ae15567.json and https://artists.proofprofile.net/proofs/artist/bfcf98b9-ba7b-49a3-a924-35eb4ae15567.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 0x3b5a8c1d7d458b0990ac1a7d6200f9a5340d7015eb00a5be9d7cf1161f6e0625. 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/INS181305657.
One Two Three Four (Get On The Dance Floor) [From "Chennai Express"]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd70985caff1d152f3c6a1b8a16709f8f67e52bc4b9c0a7bfd6e2dab871dfa6b. 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/INS181304489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12d54507f6eb7e53a269ef4784f7c9e825e8479a18fc76c4367f8c0a55e0b618. 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/INS181306567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe34f4504aafc6daec2c0c41ab8c2cf15b41bf13484795b3fa5e68726f0322326. 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/INS181305365.
Badtameez Dil (From "Yeh Jawaani Hai Deewani")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x252a47396544c0f8ce4b87b31cf85f38934202a411a3a5ee60401a108950f0f1. 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/INS181303467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36aee9dca5a256c2890dd577b2f9e2574098e224227403fe67b59ef38032de7a. 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/INS181305152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc5e8f1fc09fb6935a4898ccc983b56dd3cf78efb28ee62af94a5302a824efb0. 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/INS181303782.
Balam Pichkari (From "Yeh Jawaani Hai Deewani")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbd2decb1a658f3fc637a2022f9b6582f6f81cecea1d3e1ff2913ea6583aabeb. 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/INS181303493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f274d76edc9a0026c8d29ec31a02915438f7b892d14ee3f9fe7da6f7f20d012. 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/INS181303779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef2ea348043808df9d82575e8044db1d418b61bcf5d87665830cd41780e6e87. 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/INT102200808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x821dd45a2fd00f7c0866ba43128f8503062eb1f29b353a8563498b2255d340cc. 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/INT102200809.
Great Grand Masti (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e9520a57b9c03097bafd5f704b4299f7a80f0097213417b270ac4c64b7893ca. 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/INZ031401441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b62bab96e5ec643b7c68dbb6c298218dfb226147e04d91322476b265cc4c1ef. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/INZ031401442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee7d4803b5d9ebdbbfd787a2b19b081cf0b5b5f2fe42c5d39d735b480b10499f. 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/INZ031401443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5736a445ca39eda4a8e0310b842de9204531daae5e97db370447844860977e4. 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/INZ031401444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a639a628761bb39f22a94c540fb52d49ba5a1f9afa8c1d0b3c5dbd6efe77941. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/INS180241204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd57427a2dee29312019ec99c3aa93835169c7c3190e5a2d6e73c53bb20291138. 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/INS180241205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x107f5f0878a057d57f4477648b57f6c54bc0ddef50fc5b4288eacb085f9a6170. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/INS180241208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32054a3432aa131c33aaddebaec21893ecc97cbd1a42c34ea93f1e2a4e57215e. 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/INS181305379.
Monsta Mashup 2016 (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc82efb28f448a9019c915ac67151dd016e47e85b06c0805c39abdd34a2b6c7f3. 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/INZ031401959.