1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3831e619070d7a2f036335844863aa022c568b7863e949cb90e45118e618054e. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9a82f097-b9e8-4aa3-bd05-726126b77b7e.json and https://artists.proofprofile.net/proofs/artist/9a82f097-b9e8-4aa3-bd05-726126b77b7e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Del Cabello mas sutil (of the softest hair)
Con amores, la mi madre (With Love in my heart, mother of mine)
4 Lieder, Op. 36, TrV 186: No. 1, Das Rosenband
3 Gesange alterer deutscher Dichter, Op. 43, TrV 196: 3 Gesänge alterer deutscher Dichter, Op. 43, TrV 196: No. 2, Muttertandelei
6 Lieder, Op. 37, TrV 187: No. 3, Meinem Kinde
6 Lieder, Op. 17, TrV 149: No. 2, Standchen
Cancoes Nordestinas: No. 2, Capim di pranta (Feldarbeiterlied)
Cancoes Nordestinas: No. 6, A casinha pequenina (Liebeslied)
Cancoes Nordestinas: No. 4, Sao Joao da Ra Rao (Kinderreimlied)
Cancoes Nordestinas: No. 1, Nigue, nigue, ninhas (Wiegenlied)
Cancoes Nordestinas: No. 5, Engenho novo (Lied eines Arbeiters)
Del Cabello mas sutil (Of the softest hair)
4 Lieder, Op. 36, TrV 186: No. 1. Das Rosenband
3 Gesange alterer deutscher Dichter, Op. 43, TrV 196: No. 2. Muttertandelei
6 Lieder, Op. 37, TrV 187: No. 3. Meinem Kinde
6 Lieder, Op. 17, TrV 149: No. 2. Standchen
Cancoes Nordestinas: No. 2. Capim di pranta (Feldarbeiterlied)
Cancoes Nordestinas: No. 6. A casinha pequenina (Liebeslied)
Cancoes Nordestinas: No. 4. Sao Joao da Ra Rao (Kinderreimlied)
Cancoes Nordestinas: No. 1. Nigue, nigue, ninhas (Wiegenlied)
Cancoes Nordestinas: No. 5. Engenho novo (Lied eines Arbeiters)
Woyrsch: Piano Trio in E Minor & 4 Lieder - Goldmark: Piano Trio in D Minor
Piano Trio in D Minor, Op. 1: I. Allegro moderato
Piano Trio in D Minor, Op. 1: II. Romanze. Adagio molto
Piano Trio in D Minor, Op. 1: III. Scherzo. Vivace
Piano Trio in D Minor, Op. 1: IV. Finale. Allegro con fuoco ma non troppo
4 Lieder, Op. 2: No. 1, Ein Fichtenbaum steht einsam
4 Lieder, Op. 2: No. 2, Die Lotosblume ängstigt sich vor der Sonne Pracht
4 Lieder, Op. 2: No. 3, Die schlanke Wasserlilie schaut träumend empor aus dem See
4 Lieder, Op. 2: No. 4, Weil auf mir du dunkles Auge
Piano Trio in E Minor, Op. 65: I. Mäßig bewegt
Piano Trio in E Minor, Op. 65: II. Sehr langsam, ausdrucksvoll
Piano Trio in E Minor, Op. 65: III. Sehr gemächlich
Piano Trio in E Minor, Op. 65: IV. Belebt, doch nicht zu schnell
Piano Trio in D Minor, Op. 1: II. Romanze: Adagio molto
Piano Trio in D Minor, Op. 1: III. Scherzo: Vivace
Piano Trio in D Minor, Op. 1: IV. Finale: Allegro con fuoco (ma non troppo)
4 Lieder, Op. 2: No. 1. Ein Fichtenbaum steht einsam
4 Lieder, Op. 2: No. 2. Die Lotosblume ängstigt sich vor der Sonne Pracht
4 Lieder, Op. 2: No. 3. Die schlanke Wasserlilie schaut träumend empor aus dem See
4 Lieder, Op. 2: No. 4. Weil auf mir du dunkles Auge
Mass No. 13 in C Major, K. 262 "Missa longa": I. Kyrie
Mass No. 13 in C Major, K. 262 "Missa longa": II. Gloria
Mass No. 13 in C Major, K. 262 "Missa longa": III. Credo
Mass No. 13 in C Major, K. 262 "Missa longa": V. Benedictus
Mass No. 13 in C Major, K. 262 "Missa longa": VI. Agnus Dei
Mass No. 16 in C Major, K. 317 "Coronation": I. Kyrie
Mass No. 16 in C Major, K. 317 "Coronation": II. Gloria
Mass No. 16 in C Major, K. 317 "Coronation": III. Credo
Mass No. 16 in C Major, K. 317 "Coronation": V. Benedictus
Mass No. 16 in C Major, K. 317 "Coronation": VI. Agnus Dei
Homenaje a Lope de Vega, Op. 90: I. Cuando tan hermosa os miro…
Homenaje a Lope de Vega, Op. 90: II. Si con mis deseos…
Homenaje a Lope de Vega, Op. 90: III. Al val de Fuente Ovejuna…
Poema en forma de canciones, Op. 19: No. 1, Dedicatoria
Poema en forma de canciones, Op. 19: No. 2, Nunca olvida…
Poema en forma de canciones, Op. 19: No. 3, Cantares
Poema en forma de canciones, Op. 19: No. 4, Los dos miedos
Poema en forma de canciones, Op. 19: No. 5, Las locas por amor
2 canciones, Op. 38: No. 1, Preambulo - Lo mejor del amor