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 0xc17b458cfe8bdff4774bc1dee9ee3805db6cdb012b50ad9e07e3ce15eaeab9c5. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4c669308-8472-4625-b488-9f1e183a9dab.json and https://artists.proofprofile.net/proofs/artist/4c669308-8472-4625-b488-9f1e183a9dab.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Romantic Piano - Lovely Ambient Background
Late Night After Dark - Jazz & Classic Piano Music
Piano Music Relaxation & Positive Thinking
The Office. Stay Focus on Work. Classical Music Virtuosos.
Rain Sounds & Relaxing Instrumental Piano. Sounds of Nature for Deep Relaxation and Meditation
Sad Piano Music: Sentimental Moments, Music for Cry, Broken Heart, Lonely Time, Melancholic Music
Nature Sounds for Deep Meditation: Songs Birds and Forest Ambience, Calming & Healing Music
Masters of Classics for Children Development
Deep Sleep & Meditation – Piano Collection
Learning to Play the Piano at Home : Learning New Songs, Positive Attitude, Proud of Myself, Effective Studying
Classical Piano Sounds : Effective Learning
Piano Masters: Unusual Collection of Classical Music
Sad People Music - Lose Your Love , Sentimental Moments & Lonely Heart
Emotional Sad Music Piano- Time to Say Goodbye & Spend Lonely Life
Beautiful Piano Bar Music – Cafe Restaurant Ambient, Gentle Piano Melody, Relaxation Time with Black Coffee, Coffee Mood
Rainy Day & Gentle Piano Melodies : Relaxing Music for Deep Meditation, Sleeping Time, Short Nap, Relaxation Vibes
Wind Makes Me Relax – Music for Short Nap, Deep Meditation and Stress Relief
Sound Explosion of the Senses. Relaxing Music
Long Rainy Night. Swaying Rain for Cure Insomnia
Sleeping Piano Collection. Sleeping for Detox Negative Emotions
Au pays des rêves: Musique de piano mélancolique
Belleza de la Nostalgia: Tristes Melodías de Piano
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 0x074e7a373dab171126afa4449bba08becb6676b4117a133da481b83668003ef8. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/PLS921996750.
For a Bad and Good Day – Jazz Music Compilation, Relax and Stress Relief
Mélancolie pour piano: Musique instrumentale émotionnelle, Piano solo, Ambiance de rêverie et nostalgie
Instrumental Piano Music Relaxation, Massage Piano Music, Relaxing Piano Music, Meditation Piano Music, New Age Piano Music, Background Piano Music
Piano & Falling Rain - Relaxing Music to Soothe You as You Work, Study or Sleep
Piano Music for Hyperactive Kids: Healing Music for Insomnia Cure, Inner Calm
The Floating Piano: Every Note Offers a New Dream
Autumn's Quiet Farewell: Melancholy Piano
Sogni di Gelo: Melodie di un Inverno Silenzioso
Jazz Lullabies: Calming Piano, Ultimate Relaxation Collection to Sleep Aid
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b8b50b0d38ddd994f2a310e4cadf9274caafc523e8cb79b88383a7041250de7. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/IEWWH2402346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0024557b3e48176fbbf9dadf4aef991e28c3958a2c230bf953068d0dff81b54. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/IEWWH2402349.