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 entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x331d880eb3c222c0f0ada64e779deb1d0db74a398c0ca530d2a1ecf39f00bcd4. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ecb51b63-b7d5-4ebb-ab6f-64f54615817f.json and https://artists.proofprofile.net/proofs/artist/ecb51b63-b7d5-4ebb-ab6f-64f54615817f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 → block OTSBitcoinBlock must exist at that height 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 0x5b3e65dad727c4604563492eada0b80995c03e9970ece1c4a3d81e7216a815e9. 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/ARR6V2300115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccedcf71e88be3b479c9a75bf199e124e775935d2e6ed16788e46d325a92d3fb. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ARR6V2300119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc270422aca226bb2c27bf0751278bf95abdada518f8adf6d4506a624f04ca2d1. 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/ARR6V2300123.
Música del no Esser: No. 1, Sol de Primavera
Música del no Esser: No. 2, Vent Transparent
Orquesta De Camara Del Auditorio De Zaragoza
Música del no Esser: No. 3, Blancor de Neu
Orquestra Simfònica de Barcelona i Nacional de Catalunya
Música del no Esser: No. 4, Núvols Brillants
Concert per a Piano i Conjunt Instrumental
Cadaqués Orchestra: International Conducting Competition
Piano Concerto No. 1 in D Major, Op. 17: I. Andante – Allegro assai
Piano Concerto No. 1 in D Major, Op. 17: II. Andante sostenuto quasi adagio
Piano Concerto No. 1 in D Major, Op. 17: III. Allegro con fuoco
Piano Concerto No. 2 in G Minor, Op. 22: I. Andante sostenuto
Piano Concerto No. 2 in G Minor, Op. 22: II. Allegro scherzando
Piano Concerto No. 2 in G Minor, Op. 22: III. Presto
Piano Concerto No. 4 in C Minor, Op. 44: I. Allegro moderato
Piano Concerto No. 4 in C Minor, Op. 44: II. Allegro vivace
Piano Concerto No. 3 in E-Flat Major, Op. 29: I. Moderato assai
Piano Concerto No. 3 in E-Flat Major, Op. 29: II. Andante – III. Allegro non troppo
Piano Concerto No. 5 in F Major, Op. 103 "Egyptian": I. Allegro animato
Piano Concerto No. 5 in F Major, Op. 103 "Egyptian": II. Andante
Piano Concerto No. 5 in F Major, Op. 103 "Egyptian": III. Molto allegro
Fantasy for Piano and Orchestra, Op. 89 "Africa"
Piano Concerto in F Major: II. Pastorale con variazioni
Piano Concerto in E-Flat Major: I. Andante moderato
Piano Concerto in E-Flat Major: II. Largo
Piano Concerto in E-Flat Major: III. Airs slovaques. Allegro
Piano Concerto in C Minor, Op. 12: I. Allegro
Piano Concerto in C Minor, Op. 12: II. Scherzando
Piano Concerto in C Minor, Op. 12: III. Final
Piano Concerto in F Minor: I. Lento - Allegro
Piano Concerto in G Major, Op. 36: I. Allegro molto
Piano Concerto in G Major, Op. 36: II. Adagio
Piano Concerto in G Major, Op. 36: III. Allegro con spirit
Concerto da camera No. 1 in A Minor, Op. 10: I. Allegro
Concerto da camera No. 1 in A Minor, Op. 10: II. Adagio
Concerto da camera No. 1 in A Minor, Op. 10: III. Allegro
Concerto da camera No. 2 in C-Sharp Minor, Op. 10: I. Allegro moderato
Concerto da camera No. 2 in C-Sharp Minor, Op. 10: II. Adagio
Concerto da camera No. 2 in C-Sharp Minor, Op. 10: III. Primo movimento
Concerto da Camera No. 3 in C-Sharp Minor, Op. 10: I. Andante con moto
Symphony on a French Mountain Air, Op. 25: I. Assez lent - Modérément animé
Symphony on a French Mountain Air, Op. 25: II. Assez modéré, mais sans lenteur
Symphony on a French Mountain Air, Op. 25: III. Animé
Piano Concerto in E Major: I. Improvisation - Modéré
Piano Concerto in E Major: IV. Toccata - Finale
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9685d11b3a8e7acde80b5a9212c904c4a7121d5e08bd0c1ac597af23aedb592e. 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/ARF050800116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e1b4dd66ecda6c9518f3149bc17e56813181fd35e1657cd3484047da001c3fa. 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/ARF050500570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a4d3459da6e678f7f355720894559f13bf8db2e898093fc31c05319fe9af92d. 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/ARF050500108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50a0c796b73a4d6ee0d2d1fac3c2af83c51b6a084c2f81b6113d926d7bf1f960. 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/ARF050500148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf89c66f3581f282ac30ce6594b0038c2acf10501d7e7d195e40646a2416a482b. 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/ARF050400949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51b6996e9d998fb0c1ab6883be2fc024559596ba6694c7965d57534ed2404b00. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ARF050500345.
Dos Pies de Cueca: Cueca Campesina Tradicional / Adiós Santiago Querido
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e3fec8b507579a492425243ac75158568d180ac81b117c2d5bd8c673a4cb491. 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/ARF050800044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab21bb06fd42d6ed3697ee10a622878a82f5f2533bca96d1a5e4656f7d56e84. 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/ARF050500095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb76267685707e37cd465d69c6fffaed65481350dee566c579e97d800c77bb0d5. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCAFE2087502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0db1257845f7ff806e6089f174a0bef399072f5a9ce60088575f67b46bbc773. 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/TCAFE2087555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2acc4b358298e13e23c6625b9292834b69ea9d36243833f8b1de9af925121f10. 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/TCAFE2087828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x617020ff4cd538d8f2594f616fae5c7659e06ae59d2ed1648dd545ef625d4511. 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/TCAFE2087840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3746c84c5d3c3f8403adceae83b204fed8a0001e5b9a05f5fd8472d6e0b1c1b6. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/HKI191533701.
Danza de los ojos verdes (Dance of the green eyes)
Danza gitana (Gypsy Dance) (version for orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74023161ecd5938aadc6ba02e7435b23a15e425be3c295233f3707158f173876. 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/HKI191533703.
Boreas: Sinfonía No. 1: I. Nocturno y tema de fantasía
Boreas: Sinfonía No. 1: II. Scherzo y fantasía
Boreas: Sinfonía No. 1: IV. Passacaglia y canzona
Onibi (2017) for Soprano, Tenor Saxophone, Accordion and Cello
L'aile Suspendue Entre Le Ciel Et L'eau (2013) for Piano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4ffe634763badb6c5c767514dcfba83c41ba7129d90fe0fa7125cabe7081037. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ARC081800116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b7ebc6aa067609ac2a4b07f139041a62e3c34f02daa0353659a8400645dd0be. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ARC081800156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa179b64272c04342485c5e5fd2dd4f892529728163bb1270e0308b2664ad4833. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/ARC081800137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f7925e134c21c7825bfafe78b68203b772f86271562459914bf260599ff529e. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/ARC081800158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ca405a68ba01b011c4f5826faf6b33f18f4fff32e1f2154227575580ff86fa3. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/ARC081800159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x750791c805c7a4b2856fdfbf0d48f63918426e1e94137d67fa0d2b5f09a7103a. 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/ARC081800160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dad789de01b052428a5b7a1da75d8066747d4baf7473282fa4d571a5bf68d76. 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/QZDFP1824424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9014c065eab51399a39f71fc15b421e7d45f0d91aa071d444a0bcc3ac6e868ba. 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/QZDFP1824426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d27b63c41191812ea732e5709813a5621aacf1f4c300b77b4e439b6cce0a283. 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/QZDFP1824429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eb34862bb4a85fff64d572f19e33238a476a33ef063e6a57003d1cc96e7546a. 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/QZDFP1824431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x483380aeffcb1473124580b1561e08e73334d7aeb591c19eec28deb97a5729aa. 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/ARR6V2100041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2ab1c91680020608c9a7a79a749a9ffe5b8d59dfd17ea6b7304ff25c140df25. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ARR6V2100046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45b0a18365aeeaee59d15306183611298e535eb9bc82d04a6c1386629827f2ef. 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/ARR6V2100048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec0b1f3fc38cc0b4d8b912aed7bc6f9de6a20b33abe65fd96bdf99c9a84fb893. 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/ARR6V2100189.