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 0x367dc40925034d7d4f28c399c37b56f8c515cd9df3ea98451ffc48a5f7bb8855. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d768d9eb-8a53-4399-af0e-96a8aad04184.json and https://artists.proofprofile.net/proofs/artist/d768d9eb-8a53-4399-af0e-96a8aad04184.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Symphonie à quatre No. 6 en sol mineur, Op. 5: 2. Andante
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 0x6a4245c0811503a61dc3a110f1fbcc7b7fc584b264fdf489ef6484675603e252. 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/FRZ078901090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x197474f95da79e31d5f57a97bcb4b57180bea8ef9a41c83a0e5eb81f1fdb174c. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/FRZ078901030.
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
Symphonie à quatre No. 6 en sol mineur, Op. 5: 1. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0db54ac7bfc967beb8e91591397992c527d3cbc9ce79e18884c3c0311d808ff. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/FRZ078901080.
Pergolesi: Stabat Mater - Concerto pour violon - Salve Regina
Monteclair : Concerts & cantates francaises
Blanchard & Colin de Blamont: Guerre des Te Deum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x951b24307dfa51e371bc644cf3efbbbc84769b5b952388ea9de77e062b648934. 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/FR9W11827275.
Te Deum Laudamus, FCB.001: Te Deum Laudamus, FCB.001: IV. Sanctus Dominus Deus Sabaoth
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1098b7788b94e4ced449b5565f8506c2e9d8539abff46b3d6a05a618b639fc6d. 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/FR9W11827290.
Jean-Louis Duport: Concertos pour violoncelle
Madin: Te Deum pour les victoires de Louis XV (Live Recording at La Chapelle Royale du Château de Versailles)
Fontana: Sonate a Violino ed Altri Strumenti
Pirame & Thisbé: Prologue - Scène première, la Gloire sur son trône, chœur de héros
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07912e4e75c500a761ea88c730a28d4dd5e6091dbe7cf342e9ff66b1127e3e5e. 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/FRU620805801.
Pirame & Thisbé: Prologue - Scène deuxième, Vénus, la Gloire et leurs suites
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d90a952e8903626831a0d6e1b825c933599c536c5e32fd4c3f43f2ca56d2c76. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/FRU620805802.
Charpentier: Motets pour la Semaine Sainte et Messes à 4 choeurs
Corrette: Concerts et concertos comiques
Sinfonia Nona A Tre Violoni: Sinfonia Nona A Tre Violoni
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a580acc82bae1f35546b2e5bcc0a61d88e863a379157af7cf0191f2911e0fec. 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/BEE640213310.
Zelenka: Repons et lamentations - Office des Ténèbres du Vendredi Saint
Zelenka: Concerto et Symphonies pour Prague
Haendel, Gluck, Piccini, Hasse, Traetta: Airs d'Opera pour le Castrat Guadagni
Stabat mater pour deux sopranos, alto, cordes et continuo: I. Stabat mater
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf7a85ff9962f26e8355c6ca8bc404711c25b0c25d67473676cccd1e1022ccab. 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/BEE640313901.
Stabat Mater: XII. Quando corpus morietur
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce69462e7721c7774bc5985a849c6ac573cfe82a8895a46c1b9fe9a5ec220163. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T07:39:51Z), 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/FRU621427702.
Stabat Mater Pour Contre-ténor Et Orchestre en Fa Mineur, RV 621: Stabat Mater dolorosa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd65ea35c2df2076850a055c096d97e40acac651be9030db6f194578ae2308a6. 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/FRU621427703.
Stabat Mater Pour Contre-ténor Et Orchestre en Fa Mineur, RV 621: Eja mater
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x725340f6872941639d1a18062b5fb39d65343040bb6d93be5488f9f991635e7a. 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/FRU621427704.
Cantate "Ich Hatte Viel Bekümmernis" BWV 21: Sinfonia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf86f85ba31e87ca2ffef5c1d592b9cd7fe46a08b6cc3f25c37de40b9da768c92. 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/FRU621427705.
Sonata seconda en Sol Mineur, TWV 43:g1: III. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52f2bf2af19f56e66c78058b4da81bc24702dd50d7cf0a0244888167a9387476. 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/FRU621427706.
Concerto pour clavecin en Fa mineur, BWV. 1056: II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x386c4fd1794405bd6e1846678a532a07f9420c1bc517abfe8ce72245079a56ce. 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/FRU621427708.
Le Petit Ménestrel: Molière raconté aux enfants
Montréal Baroque Festival 2005 - Fruits of Passion
La Folle Journée 2019: Carnets de voyage
Les Grandes Eaux de Versailles (Musiques des fêtes royales)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64e7217d2de36e9eac8f92457b5bbf3caa6edc5bb9f0df5c02dda2c0c537c45e. 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/FR9W11828933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4302720b8c6abb0bc18e79f6762e6441d6c5c468e0e2619ca15b2874a1c8256. 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/FR9W11824543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4104a2807adc14651425bcd5043814fcadf7849cbd8e57164eabb08b0a82d485. 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/FR9W11829330.
Les grandes eaux musicales de Versailles
Cardonne: Sonate IV pour clavecin avec accompagnement de Violon obligé, premier livre, Op. 3 "La Favorite": II. Andante assai
Scarlatti Alessandro: Cantate & Serenades
CPE Bach : Socrate, Hamlet, Colin, Colette...