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 0x1a0b1ce9fcb8baaf4e117127fa8232a2992d8c56ffc15d1d474dd5d3cfe6f093. Chain 2 (Bitcoin): anchored in block 953786 (2026-06-15T12:56:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/db5d12f3-2404-4761-aa92-0fe0aa3a06cb.json and https://artists.proofprofile.net/proofs/artist/db5d12f3-2404-4761-aa92-0fe0aa3a06cb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Backdrop for Lockdowns - Swanky Violin and Clarinet
Relaxed Music for Dining Out - Bossanova
Festive Smooth Jazz - Background for Morning Routines
Trumpet and Soprano Sax Solos (Music for Afternoon Coffee Time)
Calm Bossa Quintet - Bgm for Classy Restaurants
Tenor Sax Jazz - Ambiance for Positive VIbes
Backdrop for Restful Days - Delightful Sax Jazz
Music for Workcations - Remarkable Sax Jazz
Backdrop for Staycations - Mysterious Sax Jazz
Wondrous Jazz Trio - Ambiance for Lounge Bars
Trumpet and Alto Saxophone (Music for Lounge Bars)
Big Band with Tenor Sax - Bgm for Lunch at Work
Subtle Music for Deluxe Cafes - Trumpet and Alto Sax
Music for Bars - Thrilling Big Band Ballad with Guitar
Majestic Background for Cool Restaurants
Wicked Jazz Trio - Background for Romantic Dinner
Smooth Music for Date Nights - Trumpet and Alto Sax
Big Band Ballad with Vibraphone - Background for Bars
Music for Classy Restaurants - Trumpet and Alto Sax
Stylish Background Music for Morning Cafe
Music for Winter Holidays - Alluring Trumpet, Electric Piano, Alto Sax and Soprano Sax
Sophisticated Background Music for Weekday Getaways
Contemporary Background for Classic Resorts
Backdrop for Classic Resorts - Trumpet, Electric Piano, Alto Sax and Soprano Sax
Playful Trumpet Solo - Ambiance for Sweet Mornings
Jazz Guitar Solo - Background Music for Good Memories
Unique Trumpet Solo - Ambiance for Morning Downtime
Phenomenal Jazz Guitar Solo - Bgm for Coffee and Brunch
Music for Coffee and Brunch - No Drums Jazz
Backdrop for Good Memories - Delightful No Drums Jazz
Music for Classic Luxury - Cheerful Chill Out
Incredible Music for Hotel Dining - Chill Out
Smooth Jazz Chill Out - Ambiance for Hotel Dining
Smooth Jazz Chill Out - Background for Hotel Dining
Music for Long Weekend Getaways - Wonderful Chill Out
Sophisticated Piano Jazz - Background for Spring Break Getaways
Understated Piano Jazz - Background for Spring Vacay
Distinguished Jazz Ballad - Bgm for Spring Vacay
Guitar Solo - Music for Just Relaxing Monday
(Jazz Organ and Bossa Guitar Trio) Music for Lush Tunes
Bossa Guitar Trio - Ambiance for Lush Tunes
Vintage Music for Loafing Evening - Bossa Guitar Trio with Jazz Organ