thumb|A jazz trio playing in a community garden. A jazz trio is a group of three jazz musicians, often a piano trio comprising a pianist, a double bass player and a drummer. Jazz trios are commonly na
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 0xd42fd504a0698a04fbc31f4b6e171c09304c42687739ffec689771e415bbf304. Chain 2 (Bitcoin): anchored in block 954659 (2026-06-21T06:14:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/db910ede-326d-4a59-9857-de2663023b70.json and https://artists.proofprofile.net/proofs/artist/db910ede-326d-4a59-9857-de2663023b70.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Trio Jazz - Background Music for Lounge Bars
Quiet Music for Cooking Reflections - No Drums Jazz
Music for Fresh Cooking at Home - No Drums Jazz
Cool Piano Jazz - Ambiance for Cozy with Coffee
Jazz Violin - Background for Coffee Study Zones
Cheerful Jazz Violin - Background for Cafes and Classics
Subdued Quartet Jazz - Background for Favorite Lullaby
Awesome Music for Stress Free Nights - Trumpet, Soprano Sax, Tenor Sax and Guitar
Backdrop for Amusing Earth - Piano Bossa Nova Duo
Backdrop for Sleeping Darkness - Deluxe Piano Bossa Nova Duo
心落ち着くジャズの調べで良い一日となった
Acogedora música Jazz para un día lluvioso