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 0x221fe45aa10f1d5b93ea05811f4b01c6ed9bc400d021f3f940917d002992e6b8. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/16cf6659-57ec-4ad5-805c-7404918f653f.json and https://artists.proofprofile.net/proofs/artist/16cf6659-57ec-4ad5-805c-7404918f653f.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 → 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 0x6ae5d1d069c7c0f36e044a6f7c4661b0e10e15ea92473a9ee6f88fcea08b2808. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/BGA472129457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ac820946ff01f18e951fe4a6ea0de7ac95a006b3981b0392a994deecad2516d. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GX5MY2139223.
Jazz Quartet - Ambiance for Cool Spring Days
(Vibraphone and Tenor Saxophone Solos) Music for Spring Creativity
Music for April Inspirations (Vibraphone and Tenor Saxophone)
Backdrop for Morning Coffee Thoughts - Retro Vibraphone and Tenor Saxophone
Tremendous Ambiance for Creativity with Coffee
Vibraphone and Tenor Saxophone Solos (Music for Creating while Drinking Coffee)
Extraordinary Jazz Quartet - Bgm for Relaxing Controller
Quartet Jazz - Background for Social Feelings
(Soprano Sax Solo) Music for Social Feelings
Fiery Trumpet Bossa - Ambiance for Soft Traveling
Music for Soft Traveling (Trumpet, Soprano Sax, Tenor Sax and Guitar)
Music for Cool May Nights - Marvellous Jazz Guitar Solo
Music for Early Summer Changes - High Class Trumpet, Electric Piano, Alto Sax and Soprano Sax
Music for May Travels (Trumpet, Electric Piano, Alto Sax and Soprano Sax)
Quartet Jazz - Background Music for Lazy Thursday
(Smooth Jazz Sax) Music for Vacations in May
Music for Low Key Mornings - Soprano Sax Solo
Backdrop for Night-Time Reflections - Jazz Organ and Guitar
Quiet Music for June Love - Soprano Sax Solo
Stellar Music for June Moods - Soprano Sax Solo
Backdrop for Study Club - Serene Jazz Organ and Guitar
Opulent Background for Morning Wellness Coffee
Backdrop for Deluxe Summer Time - Understated Jazz Organ and Guitar
Music for Late August Travels - Jazz Organ and Guitar
Music for Fall Seasons (Jazz Organ and Guitar)
Distinguished Jazz Trio - Ambiance for Deep Season
Lovely Latin Trumpet - Background for Deep Realities
Soprano Sax Solo - Music for Coffee Heaven
Latin Trumpet - Background for Pathway Serenity
Calm Quartet Jazz - Ambiance for Quiet Loungers
(Acoustic Guitar Quartet) Music for Hanging Out with Jazz
Trio Jazz - Background Music for Respectful Flashbacks
Lively Background for Respectful Flashbacks
Backdrop for Respectful Flashbacks - Romantic Jazz Organ and Guitar
Music for Cool with Coffee - Cheerful Jazz Organ and Guitar
Fiery Jazz Trio - Ambiance for Soft Winter Moments
Music for The Morning Chill - Successful Jazz Organ and Guitar
Music for Timeless Pleasures (Piano Bossa Nova Duo)
Acoustic Guitar Quartet - Music for Welcoming Power
Easy Listening Piano Music - Background Music for Calm Coffee and Work
Chilled Easy Listening Piano Music - Bgm for Monday Work Cafe
Music for Welcoming Power - Understated Acoustic Guitars
Easy Listening Piano Music - Background Music for Important Goals
Easy Listening Piano Music - Bgm for Daring Goals
Debonair Music for Accurate Work - Latin Piano Jazz
Backdrop for No Stress December - Latin Music
Latin Trumpet - Ambiance for No Stress December
Latin Guitar - Background Music for Chill Out Room