1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x9bc9b0a6b02bbfd6612f92fa28b11b0e3e73030f506eda81dd141dfbdb009441. Chain 2 (Bitcoin): anchored in block 954040 (2026-06-17T03:05:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3e736c1a-2b60-4fbb-b7dd-ede2bfb48183.json and https://artists.proofprofile.net/proofs/artist/3e736c1a-2b60-4fbb-b7dd-ede2bfb48183.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 → block OTSBitcoinBlock must exist at that height 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 0x8716b7f6be371475af138a8ae7ae0951a749d6a59ded60649bd92f307ec49fe1. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/GBPS81713359.
80s Sounding Vacuum Cleaner with Pink Noise - Loopable, No Fade
Deeper Sounding Vacuum Cleaner with Pink Noise - Loopable, No Fade
Deeper Tone Vacuum Cleaner with Brown Noise - Loopable, No Fade
Hand Held Vacuum Cleaner with White Noise - Loopable, No Fade
Messy Floor Vacuum Cleaner with Brown Noise - Loopable, No Fade
Messy Floors and a Weaker Motor Vacuum Cleaner with Brown Noise - Loopable, No Fade
Non Conventional Sounding Vacuum Cleaner with White Noise - Loopable, No Fade
Old Ratty Vacuum Cleaner with Pink Noise - Loopable, No Fade
Old Ratty Vacuum Cleaner with Green Noise - Loopable, No Fade
Stronger Motor Vacuum Cleaner with White Noise - Loopable, No Fade
Clean Green Noise with Vacuum Cleaner - Loopable, No Fade
Vacuum Cleaner with Pink Noise - Loopable, No Fade
White Noise with Vacuum Cleaner - Loopable, No Fade
Soothing Brown Waves with Vacuum Cleaner - Loopable, No Fade
Pure Brown Noise with Vacuum Cleaner - Loopable, No Fade