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 0xf4283eb292ba12dcecc25a9bb6f916e3ffaf38b9653803ae126625ba0b0276db. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/94dd2265-d3a6-4b43-9afd-661bff470c81.json and https://artists.proofprofile.net/proofs/artist/94dd2265-d3a6-4b43-9afd-661bff470c81.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Classical Prenatal Relaxation: Calming Music for Pregnant Woman, Pregnancy Music, Gentle Sounds for Labor
30 Bedtime Baby Classics: Relaxing Piano Lullabies for Sleep Aid
Classical Music for Babies - Essential Classical Piano Pieces for Baby Relax & Infant Songs
Baby Balett Class: Little Balerina – Pink Tutu, Ballet Dance Music for Toddlers, Kids & Children, First Lessons with Tchaikovsky Swan Lake Vol. 2
Act III, Swan Lake No. 17, Scene – La sortie des invités et la (Pt. 2)
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 0xc8730997e20773ec9d78cbba44045a08f66ec7903c69e610b2f01e7fe7f93d77. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/PLL431499910.
Act III, Swan Lake No. 18, Scene (Allegro – Allegro giusto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9a2927911a56d81b0d46fb9a5e1e49d6fe2b7dad75211f1ab49f1bed8d9f744. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/PLL431499911.
Goodnight Lullabies: Deep Relaxation - Classical Piano Pieces to Baby Sleep, Favourite Sleep Time Songs for Children
Baby Balett Class: Little Balerina - Pink Tutu, Ballet Dance Music for Toddlers, Kids & Children, First Lessons with Tchaikovsky Swan Lake Vol. 1
Act I, Swan Lake No. 9, Finale – Swan theme
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18828fc238bf1bce8ba8299ebb1ce59e5fd15cb75ae3878468d4c70cedae97eb. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/PLL431499899.
Act II, Swan Lake No. 11, Scene – Swan theme
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97dea91a3e7046c75f6c83c50cb91c6817b4c4119475bda42c71555fdb2d99d0. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/PLL431499900.
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
White Christmas Classics - Traditional Xmas Piano Songs for Happy Christmas Eve
Classics for Cats - Therapy Music for Cats to Calm and Relax, Pets Love Piano
The Best Classical Piano to Help Your Baby Sleep – Beautiful Piano Music to Sleep, Classical Lullaby, Bedtime Music, Cradle Songs, Better Sleep
Chillout: 60 Minutes of Classical Music for Relaxation
Fifteen Shades of Love with Classical Piano – Romantic Music for Romance, Date, Flirt, Desire, Kiss, Love
First Baby Classical Collective – Beautiful Piano Music for Babies, Relaxation Melodies for Kids
Clásicos para Niños Pequeños - Música Clásica para Bebés, Compositores Famosos, Tiempo para Relajarse, Música de Piano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb7766bb7e2ecf361468f75cb66eeb7c6a319936d1a80ca7b7c297f372426655. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/PLL431481667.
Classical Music for Babies & Kids – Calm Music, Lullabies, Help Your Baby Sleep, Bedtime Stories, Beautiful Harp Background Music
Nocturne No. 1 (Classical Piano Music for Baby)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb839f5d9cd6f406197ec38e6d94c5569b6047f12879e9eaaf3eb2f9d83a3568. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/PLL431490628.
Música Clássica para Bebês & Crianças - Canções Favoritas para Bebês, Total Relajación, Canções de Ninar, Calmante Sons para o Sono Profundo Durante a Noite, Música Infantil
Hypnobirthing – The Best Pregnancy Classical Music for Labor, Calm Mommy and Calm Baby
Música para Estudar: Concentração de Música Clássica por Seu Poder Cerebral, Idade Nova Sons da Natureza, Meditação e Foco na Aprendizagem
Classical Lullabies for Goodnight – Baby First Classics & Lullabies, Favourite Sleep Time Songs for Children, Toddlers & Kids, Sweet Dreams, Soft Harp Sounds
100 Minutes of Classial Music for Bedtime – The Best Famous Composers Before Sleep, Easy Listening, Bedtime Songs to Help You Relax, Rest, Destress & Free Mind
Mozart For Babies Brain Growth: Baby Brain Development
Baby Ballet Dance – Classical Ballet Music for Kids, Ballet Class, Instrumental Music for Dancing, First Ballet Lessons
Sanfte Klaviermusik – Schöne Instrumentalmusik, Romantische Klavierlieder für das Wohlbefinden, Zeit zum Entspannen
Beta & Theta Waves – Greatest Classical Songs to Exam Study, Deep Concentration, Enhance Memory, Focus on Learning, Study Music
Chilled Classical Piano Lounge – Essential Piano Pieces, Ultimate Peaceful Piano Lounge, Easy Listening, Calming Piano Music
Bedtime Haydn for Babies: Classical Lullabies Instrumental Music for Sleep All Night Long
The Best Music for Human Brain – Classical Music for Your Mind, Exam Study Music, Deep Concentration, Mindfulness, Music for Studying
Relaxation Meditation - Classics for Reflection, Destress and Deep Focus
The 30 Darkest Pieces of Classical Composers – Dvo?ák, Grieg, Haydn, Handel, Schubert & Other, The Best Classical Music in the World
Bach, Beethoven, Mozart and Baby – The Best Classical Music for Your Babies, Children & Kids
The Masters of Relaxation: Bach, Beethoven, Mozart, Classical Chamber Music for Serenity and Inner Peace
Harp and Piano Duet – Top 30 Beautiful Pieces, Relax with Classical Music, Magical & Emotional Music, Easy Listening
Baby's First Classical with Mozart, Bach, Beethoven: Brilliant Music for Little Baby, Einstein, Genius, Effect Classics for Kids Listen & Learn
Journey Through the Classics – Famous Classical Composers for Beautiful Moments, Easy Listening, Chamber & Mood Music, Well Being
Children's Classical Music – The Best Classical Collection for Kids, Playful Classics Songs for Cognitive Development, Learning for Babies & Children
Classical Music for Pregnancy & Child Birth - Expecting a Miracle, Pregnancy Music for Labor, Comforting Restful Music for Pregnant Women, Enjoy the Best Time of Your Life, Childbirth, Relaxa
Classical Chamber Music - 30 of The Best Realxing Music in the Universe Franz Joseph Haydn, Antonín Dvořák, Felix Mendelssohn, Johan Pachelbel
Ultimate Mozart for Babies – Classical Relaxation Music, Mozart for Baby's Mind, Easy Listening Classical Music for Childrens & Kids