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 0xb3c55162bb6a874e6188d4dabeeb73822ee3536089de460137c287aa1e7fd186. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e69b9fe8-5a3b-49c1-81fb-8edd2eae11fb.json and https://artists.proofprofile.net/proofs/artist/e69b9fe8-5a3b-49c1-81fb-8edd2eae11fb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Instrumental Guitar Music - Zen Restaurant Music, Jazz Guitar Dinner Party, Relaxing Jazz Music, Romantic Guitar, Wedding Guitar
Easy Listening Guitar - The Best Acoustic Songs, Guitar Moods Instrumental Favourites, Guitar for Relaxation, Acoustic Guitar, Jazz Guitar
Acoustic Afternoon - Relaxing Acoustic Guitar, Ambience Music for Rest, Jazz Caffee Break, Jazz Guitar, Just Relax, Instrumental Background Music, Campfire, Party, Chill Lounge
The Best Relaxing Classical Guitar - 50 Most Popular Lounge Guitar Songs for Good Mood
Smooth Saxophone, Guitar & Piano: Jazz Night Music, Piano Bar, Sleep Music to Help You Relax All Night, Relaxing Bedtime Music, Background Instrumental for Beautiful Moments
Best Guitar Music Collection: Positive Instrumental Jazz, Smooth Moments, Easy Listening, Simple Pleasure
Relaxing Classical Playlist Guitar Music: Good Mood Jazz Guitar for All Day
Morning Dew: Acoustic Coffee House, Acoustic Guitar Chill, Afternoon Relax (Acoustic Feelin' Groovy)
Smooth Saxophone, Guitar & Piano Vol. 2: Jazz Night Music, Piano Bar, Sleep Music to Help You Relax all Night, Relaxing Bedtime Music, Background Instrumental for Beautiful Moments
Lady of Spring: Piano & Guitar Acoustic Collection
Sensual Brazil Guitar: 30 Super Sexy Songs, Romantic Bossa Nova, Summer Crush, Seductive Latin Playlist
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 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 0x12e9bae84f214074183f8bb2487af21d5bb7dde16d2f7b1d2e8f6ac6a1ee3789. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/UKR4Q2063333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69f37d9c061a99cf4666f7fbd3291443935244efb26ae570f1c015b47dcc9db4. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/UKR4Q2063336.
Acoustic Jazz Nights: Smooth Guitar Melodies, Relaxing Jazz Tones, and Cozy Vibes
Latino Fall Fusion: Bossa Nova Guitar Vibes for Cozy Evenings
Haze of Desire: Smoky Blues Guitar Ballads
My Electric Guitar Gently Weeps: Soft Guitar Jazz Background Music for the Soul The Sax of Love: Jazzy Ballads for Intimate Moments
Rytmy z Kofeiną: Muzyka Jazzowa, Która Ożywi Twój Dzień