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 0xd88ccc92ae4a320e852931dc16bf5c4820ceac8da43de514876bc2c7d0636186. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2141d095-4945-4e2d-afb8-88e5fa8f74a3.json and https://artists.proofprofile.net/proofs/artist/2141d095-4945-4e2d-afb8-88e5fa8f74a3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cantigas de Santa Maria: A Madre de Que Livrou
Cantigas de Santa Maria: Qual é Santivigada
Cantigas de Santa Maria: Ben Vennas, Mayo
Cantigas de Santa Maria: Nenbre-sse-te, Madre
Cantigas de Santa Maria: Quenbõa Dona Querrá
Cantigas de Santa Maria: Muito Nos Faz Gran Merçee
Cantigas de Santa Maria: Aver Non Poderia
Cantigas de Santa Maria: Ontre Toda-Las Vertudes
Cantigas de Santa Maria: Sabor á Santa Maria
Cantigas de Santa Maria: Santa Maria Valed'
Cantigas de Santa Maria: Quantos Me Creveren Loarán
Cantigas de Santa Maria: Quen á Santa Maria
Cantigas de Santa Maria: Nas Mentes Senpre Tẽer
I maestri del colore (Jewel Case Standard Edition)
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 0x5e4bcc8bc6550cf19d62c6eaca0eed3834757c3322f92d3da3d7d1cf3ef106fd. 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/FR2X41603090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5932d10fdd88b5fd5b2cc1697137546775766e4054dfc314eb37b7b645323ae2. 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/FR2X41603094.
Der Rose Pilgerfahrt, Op. 112: Was klingen denn die Hörner - Im Hause des Müllers
Ottavo libro de' madrigali: Combattimento di Tancredi e Clorinda, SV 153
Die Kunst Der Fuge, BWV 1080: I. Contrapunctus 1, 4 Voice Fugue on Principal Subject & IX. Contrapunctus 9, a 4 alla duodecima
Stabat Mater, P. 77: X. Fac ut portem Christi mortem & XI. Inflammatus et accensus
Cantigas de Santa Maria: No. 323, Ontre Todalas Vertudes
All the Angels Exult (Russian Christmas, Feast of the Nativity)
Stabat Mater: XIII. Juxta crucem tecum stare
Trio Pathétique in D Minor: I. Allegro moderato
6 Romances, Op. 57, TH 105: No. 3, Do Not Ask. Adagio molto sostenuto
Der Rose Pilgerfahrt, Op. 112: Es'War Der Rose Erster Schmerz - Wie Blätter Am Baum
Come in sul fronte fu preso Narciso - Madrigale
Chos non e che se tanto mi tiri - Ballata
Non posso far bucato che non piova - Ballata
Die Verschworenen, D. 787: Verräterai Hab, Ich Entdeckt
Piano Sonata No. 21 in B-Flat Major, Op. Posth., D. 960: Allegro vivace con delicatezza
Ein deutches Requiem, Op. 45: V. Ihr habt nun Traurigkeit
Cello Sonata No. 1 in E Minor, Op. 38: I. Allegro non troppo
Vêpres en la fête de Saint Joseph (Psaume 134)
6 Concertos, Op. 3, No. 2 in G Minor: II. Allegro
Tolomeo, re d'Egitto, HWV 25: Stille amare
Harpsichord Concerto No. 1 in D Minor, BWV 1052: I. Allegro
Madrigals, book 5: No. 1, Cruda Amarilli, SV 94
Concerto for Strings in G Major, RV 151 "Alle Rustica": III. Allegro
6 Quartets, Op. 25, No. 5 in B-Flat Major
Cello Suite No. 2 in D Minor, BWV 1008: VII. Gigue
Piano Concerto No. 1, Op. 15: III. Finale. Rondo - Allegro
Brunette je vous ay amée / Brunette au sorcil noir
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23b49faccada881549e78bc61d6e45e150cef94ce8451189ce627b6f99ae2e57. 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/ES7860700475.
Brunette je vous ay amée - Brunette au sorcil noir
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cf49e1490bea331e2685e4053fcda0bcb9bd7a2c4dddf402a384c1e93cbeedb. 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/FR10S1779009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bd8657a0cd9856968d58557d8f8b74f4955c082cb1f8cd6a5f7c26646db96b7. 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/FR10S1779018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0ff2d0c22e4f31029dff728be0cd950f6103c075a098b5cbc5f1fc8dbf755ec. 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/FR10S1779024.
Sonet vox ecclesie audes dei gratie, conduit
O Yesu Dolce: Laudi italiane del quattrocento
Ballate e madrigali veneti: No. 1, Vaguza vaga - Madrigale
Ballate e madrigali veneti: No. 2, E vatene segnor mio - Ballata maggiore
Ballate e madrigali veneti: No. 3, Per tropo fede - Ballata minima
Ballate e madrigali veneti: No. 4, Bella granata - Madrigale
Ballate e madrigali veneti: No. 5, Piançe la bella iIguana - Madrigale
Ballate e madrigali veneti: No. 6, La desiosa brama - Madrigale
Ballate e madrigali veneti: No. 7, Che ti cova nasconder - Ballata minima
Ballate e madrigali veneti: No. 8, Abraçami, cor mio - Madrigale
Ballate e madrigali veneti: No. 9, Lucente stella - Ballata maggiore
Ballate e madrigali veneti: No. 10, Lavàndose le mane - Madrigale
Ballate e madrigali veneti: No. 11, Piançe la bella iIguana - Madrigale
Ballate e madrigali veneti: No. 12, Che ti cova nasconder - Ballata
Ballate e madrigali veneti: No. 13, Canta lo gallo - Madrigale
Ballate e madrigali veneti: No. 14, Su la rivera - Madrigale
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35f9099dfb7b2db6773fdca60f0ce2c8ebf8ea2681e1596f8d349f8971b38675. 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/FR10S1779111.
Ballate e madrigali veneti: No. 15, Amor mi fa cantar a la Francesca - Ballata minima
Ballate e madrigali veneti: No. 16, Non formò Cristi - Ballata maggiore