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 0xb1308cea167b994a8650e3481cb75de6238346f87d72adf049d77bf633fb8b68. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6fb3a56d-a727-4f47-b612-883fc1e77bbd.json and https://artists.proofprofile.net/proofs/artist/6fb3a56d-a727-4f47-b612-883fc1e77bbd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The End? (from "Sherlock Holmes: A Game of Shadows")
Intro Theme (From "S.T.A.L.K.E.R.: Call of Pripyat")
Chapter Doof (From "Mad Max: Fury Road")
Sword of Destiny (from "The Witcher 3: Wild Hunt")
Theme from Vice City (From "GTA: Vice City")
Terminator 2 Theme (From "Terminator 2: Judgment Day")
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 0xf7127f7fe37e8cb141056def63e3e9049afd6b3126e8390e181c7837673adb94. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZPJ32147149.
I Am the Chorus of Screams! (From "Outlast 2")
Hell March 3 (from "Command & Conquer: Red Alert 3")
Hunt Or Be Hunted (From "The Witcher 3: Wild Hunt")
Ghostbusters Theme (From "Ghostbusters")
In Deep (From "Command & Conquer: Red Alert 2")