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 0x15c7a18920b9a39f522552d3de28e48982e5cfa02b1e1295f4a154d45af76e8c. 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/3c3066a5-b261-419f-b7dd-417347de48a6.json and https://artists.proofprofile.net/proofs/artist/3c3066a5-b261-419f-b7dd-417347de48a6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Serenissima 1 (La) - Lute Music In Venice 1500-1550
Tastar de corde, Recercar dietro - Pavana alla venetiana - Saltarello - Piva
Recercare - Adieu mes amours (Josquin des Pres)
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 0x88b01f0902ca56c867571a4157c586c1f1c52814aaa0cfe6a90c5d7489256d1b. 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/SEAED8999020.
Recercare sexto - Recercar quinto - Saltarello ditto la bettoncina - Saltarello ditto el giorgio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0335d6818ed76fdd5e45c5501e48e46e423fdd5f67795380fca6e4e918a1aa23. 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/SEAED8999030.
Ricercare No. 7 - Balletto - De tous biens pleine - La Spagna: Recercar sesto - Balletto - De tous biens pleine - La Spagna
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3406fd23e039bcea433201c03c7c7fc0662e7292c4e36e2ae64d0e5ae709f44b. 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/SEAED8999040.
Fantasia (33) - Recercar [51] - Recercar [16] - Fantasia [64] - Fantasia [28]
Et in terra (Pange lingua by Josquin des Pres) - Qui tollis - Padoana
Recercar decimoquinto - Mon amy (Mathieu Gascongne) - Entre mes bras
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc90e39936ddc5ed5dbc7a232ed55337e3fffd52bce556ca588c9cbf2c4556026. 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/SEAED8999070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48e39b7b4a8a76904004c3b475d50fbd3dbb005ac7745f7d7098045f72f33cc4. 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/SEAED8999080.
Tastar de corde, Recercar dietro - Calata ala spagnola - Pavana alla ferrarese - Saltarello - Piva
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f71cfe410f66986b6808082b6b6d5c85eab63bbef513cd5d822a13ddea99482. 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/SEAED8999090.
Saints and Sinners - The Music of Medieval and Renaissance Europe
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Missa L'homme arme: Veni Sancte Spiritus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x188ee2790b8cff06c118b7a1c1c87eb1c2cbec0a54efdb9b15e521af9b8fd87b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/HKI199530308.
Ja nuls hom pres (arr. J. Ferrero for voice and chamber ensemble)
Salve regina IV: Ad te clamamus, exsules filii Hevae
Magnificat (Regensburg, after 1250) (arr. C. Haas for voice)
Nu alrest leb ich mir werde, "Palastinalied" (arr. J. Ferrero for voice and chamber ensemble)
Salve regina IV: Eia, ergo, advocata nostra
Mir ist ummaten leyde (I am grieved beyond all measure) (arr. M. Lewon for voice and vielle en luth)
Salve regina IV: O clemens, O pia, O dulcis Virgo Maria
Le jeu de Robin et de Marion (The Play of Robin and Marion): Scene 1: Marion is happily minding her own business…Robins m'aime
Le jeu de Robin et de Marion (The Play of Robin and Marion): Scene 1: Je me repairoie
Sederunt principes (4-part organum - plainchant)
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Le jeu de Robin et de Marion (The Play of Robin and Marion): Scene 1: He Robin
Cantigas de Santa Maria: Entre Av'e Eva, CSM 60
Virtuoso Dance Music from the Time of Boccaccio's Decamerone: Saltarello No. 2
Laudario di Cortona: Venite a laudare (Come and praise)
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Virtuoso Dance Music from the Time of Boccaccio's Decamerone: Saltarello No. 3
Non ara may pieta questa mia dona (arr. for chamber ensemble): Codex Faenza: Non ara may pieta questa mia dona (arr. for chamber ensemble)
Chansons: Vergene bella (arr. for voice and chamber Ensemble)
Pilgrim Songs from the Monastery of Montserrat (1400-1420): O Maria, maris stella
Messe de Nostre Dame: La Messe de Nostre Dame: Kyrie
The Buxheim Organ Book: Chanson and basse danse intabulations: Gilles Binchois: Qui veut mesdire (128)
Il primo libro de balli: XVIII. Ballo francese
Il primo libro de balli: XVI. Ballo Milanese
Il primo libro de balli: XV. Arboscello, ballo furlano
Il primo libro de balli: XIV. Ungarescha e saltarello
Il primo libro de balli: XII. Schiarazula marazula
Divisions on Palestrina's vestiva i colli
Recercar sopra il canto fermo di costanzo festa e per sonar all'arpa
Recercada prima sobre "O felici occhi miei"
Divisions on Orlando di Lasso's Suzanne un jour
Dall'Aquila / Da Crema: Ricercars / Intabulations / Dances
La traditora No. 38: Saltarello, "La traditora"
Ricercar No. 26 - Fantasia, GAC, fol. 57
La cara cosa No. 36f: Gagliarda, "La cara cossa"
Pass' e mezo e saltarello a la bolognesa
Pass ' e mezo e saltarello de la sasinata
Nobilissimo Istromento: Virtuoso Lute Music of the Italian Renaissance
Fantasia 65 - From "Intabolatura di lauto - Milano, 1548"
Fantasia 30 - From "Intabolatura di lauto - Milano, 1548"
Recercar secondo - No. 2 from "Intabolatura de Lauto, Libro 1 - Venice, 1546"
Las je m'y plains - Version for Lute by Francesco da Milano
Recercar alla spagnola - From "Compositione di meser Vincenzo Capirola, gentil homo bresano - circa 1517"
Canone a 2 - From "Intabolatura di lauto - Milano, 1548"
Fantasia prima - From "Intabolatura di liuto di M. Francesco Da Milano et Perino Fiorentino suo discipulo, libro terzo - Venezia, 1562"
Fantasia 7 - From "Intabolatura di lauto - Milano, 1548"
Incognito - No. 9 from "Opera IX de balli - Venice, 1553" - Version for Solo Lute
Fantasia 33 - From "Intabolatura di lauto - Milano, 1548"
De mon triste déplaisir - Version for Lute by Francesco da Milano
Recercar nono - From "Compositione di meser Vincenzo Capirola, gentil homo bresano - circa 1517"
Fantasia 1 - From "Intabolatura di lauto - Milano, 1548"
Fantasia septima - No. 41 from "Novae Tabulae Musicae - 1582"
Fantasia 15 - From "Intabolatura di lauto - Milano, 1548"
Fantasia 34 "La Compagna" - From "Intabolatura di lauto - Milano, 1548"
So ben mi ch'a bon tempo (Aria) - Version for Solo Lute - From "Balletti moderni facili per sonar sopra il liuto - 1608"
Fantasia 87 - From "Intabolatura di lauto - Milano, 1548"
Fantasia 10 - From "Intabolatura di lauto - Milano, 1548"
Recercar decimoquinto - No. 15 from "Intabolatura de Lauto, Libro 1 - Venice, 1546"
Fantasia 61 - From "Intabolatura di lauto - Milano, 1548"
Fantasia 90 - From "Intabolatura di lauto - Milano, 1548"
Recercar sesto - From "Compositione di meser Vincenzo Capirola, gentil homo bresano - circa 1517"
Fantasia 6 - From "Intabolatura di lauto - Milano, 1548"
Fantasia 67 - From "Intabolatura de lauto, Libro 1 - Venice, 1546"
Fantasia 5 - From "Intabolatura di lauto - Milano, 1548"
Calata spagnola 5 - No. 32 from "Intabulatura de Lauto, Libro 4 - 1508"
Fantasia 22 - From "Intabolatura di lauto - Milano, 1548"
Orpheus' Lute. Improvisation and Wonder in Humanist Italy
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6288dfa08b165eecdcc92fb1083034fcd0979559844549ca39eaccb57dabcc76. 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/FR9W12434461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c5a8d16557c6da6bd64f50448258629f75586785cdc6d5c0ea88bcba4529ae. 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/FR9W12434462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1496abe3794e56b04e3a39b6e2a023ce508cadefca7f27f9da3028e71bfb26a. 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/FR9W12434463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d6797abad923815ed4f035b0fd42e91c0442d8eaf844eceab586e6611255a9e. 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/FR9W12434466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e0c27a66e4e86b194efe8df751e976cd3214fc92e558a26742cecb9654af2e4. 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/FR9W12434468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5fb6069a24318ab64183e7613e9fcca68efce229f0c0f7225e74509afe7ffd0. 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/FR9W12434470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28656dda8f96ffe1fdeb1c9188fcaf2aed8cd0372af14eee4d9d0b5164b42087. 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/FR9W12434472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x649f7d41f606188b9b1295296864878cd3140f00de74b9a7f8abe535fb1510f0. 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/FR9W12434477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5102b8ee782bf54e4e3aeee24a5a2a8d4777fb66b6bb50590e4baf970ce36f9. 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/FR9W12434479.
Daaldantz, poolsche dantz, proportion, poolsche dantz, proportion (Arr. T. Johansson and P. Mattsson)
Lundchen Battallia: Aria. Blickt ihr Salinnen
Your Majesty: A Guitar Player in 16th-Century European Courts
Se io m’accorgo ben mio d’un altro amante
Fantasía No. 10 de Consonancias y Redobles
The Most and Mighty Christianus the Fourth, King of Denmark, his Gaillard