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 0x3a3cb48688ff88ad388b20e1d4179b31b8a2758b31af34e8a8c6ae1071b0eb2c. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/896985d8-d5d5-4517-acdc-49f66dc7bd63.json and https://artists.proofprofile.net/proofs/artist/896985d8-d5d5-4517-acdc-49f66dc7bd63.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Karlis Auzans Music for Dailes Theatre Play Frankensteins
The Elephant Man: Music for Liepajas Theatre Play
1984: Music for Liepajas Theatre Play (Original Score)
Putin's Witnesses Main Theme (From "Putin's Witnesses")
Talantīgais Misters Riplijs: Mūzika Dailes Teātra Izrādei
My Favorite War (Original Motion Picture Soundtrack)
Lielais Indriķis (Oriģināls Kinofilmas Skaņu Celiņš)
Mūzika no izrādes Vairāk par dzīvi TEĀTRIS
Podnieks par Podnieku. Laika liecinieks. (Original Documentary Soundtrack)
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 0x31c5fd07bdb399e23c4889af7fbfd92aa608b903e683c349afe14b87cd60a2db. 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/LVL152301660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b435f738a2d2c88ef4efc293b5dc406fba3755f2834f4cc6b9989afb1565c26. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:11:25Z), 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/LVL152301640.
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 0xe8a804f2d73b8a1611ee43b9f78bf99671afa36728de26f881578d4450cd5dd2. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/LVL152301639.