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 0xc2122ad679ea43d135dc74292f2ec717de4417fed1cfbed12fd1d8c30c703cb7. 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/749116e6-d1ef-49b7-9f68-f6926fc4e304.json and https://artists.proofprofile.net/proofs/artist/749116e6-d1ef-49b7-9f68-f6926fc4e304.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Background Music for Unwinding from Work
Contemporary Jazz Ballad - Bgm for Time Off Work
Distinguished Latin Big Band - Ambiance for Cooking Italian
Magnificent Jazz Trio - Ambiance for Chilling in March
Fabulous Background Music for Fresh Gourmet
Groovy Jazz Guitar - Background for Cool Dining
Backdrop for Cool Dining - Atmospheric Jazz Ballad
Quartet Jazz - Ambiance for Comforting Cacophony
Exquisite Music for Wonderful Tonight - Soprano Sax Solo
Understated Music for Romantic Notes - Soprano Sax Solo
Backdrop for Morning Roads - Soprano Sax Solo
Dream Like Quartet Jazz - Bgm for Spring Bliss
Tenor Sax Jazz - Ambiance for Pleasant Homes
Breathtaking Background for Loafing Evening
Jazz Sounds: Swinging Lounge Melodies for Cool Cats
Harmonious Cuddle Time: Smooth Jazz for Precious Baby Moments
Jazz Workday Rhythms: Coffee Lounge Anthems for Productivity