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 0xa71a549b45fc8b9769b4771db4bb70137f8f5a1e6423ad23151b52dd51e5d8b1. Chain 2 (Bitcoin): anchored in block 954058 (2026-06-17T06:34:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/44ce1962-f08b-4f1b-8c3c-84bd92a9b4d2.json and https://artists.proofprofile.net/proofs/artist/44ce1962-f08b-4f1b-8c3c-84bd92a9b4d2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Art of Fugue, BWV 1080: Contrapunctus 1 - Improvisation
Suite élégiaque: IV. Regard face à la lumière I – Solo II
Suite élégiaque: V. Regard face à la lumière II – Solo II
Suite élégiaque: VI. Regard face à la lumière III – Solo III
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 0x77f56cb192e0dcb3c44c898f0483fe712d3ffec8b6df1bcfca968c16c77e1982. 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/FR1P70600380.
Concerto No. 5 for Keyboard in F Minor, BWV 1056: Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10256a45d5441966fe7370b848634c58954c78ef20a44505e8a706b1e36d0a91. 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/FR1P70600390.
Concerto No. 5 for Keyboard in F Minor, BWV 1056: Largo - Improvisation
Suite élégiaque: VIII. Éternité douce / amère
He Nevuh Said a Mumbalin' Word: Introduction - Live
He Nevuh Said a Mumbalin' Word: II. He Nevuh Said a Mumbalin' Word - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddb51ebd5d79b6bf5c67ce5d1a55c177555c1abfc72732f990582e0963dca0d2. 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/FR1P70700940.
The Art of Fugue, BWV 1080: Contrapunctus 9
Song of Praise - Jesu meine Freude, BWV 227, Pt. 1
Song of Praise - Jesu meine Freude, BWV 227, Pt. 2
Cantata Vergnügte Ruh, beliebte Seelenlust, BWV 170: Aria No. 1
The Father, the Son and the Holy Ghost - Improvisation on B.A.C.H.
Train Traveller: Paris - London . London - Paris
Impromptu, Op. 90 D. 899: No. 2 in E Flat Major (Allegro)
Variationen über das Thema "Là ci darem la mano" aus Mozarts Don Giovanni, WoO. 28: Thema - Variationen - Coda
Violin Sonata No. 3, Op. 108: Allegro alla breve
Violin Sonata No. 3, Op. 108: Un poco presto e con sentimento
Violin Sonata No. 3, Op. 108: Presto agitato
Peer Gynt, Op. 23: I. Dans la cour de la mariée (Prélude à l'acte I)
Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": I. Grave - Allegro di molto e con brio
Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": II. Adagio cantabile
Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": III. Rondo (Allegro)
Four Romantic Pieces for Violin and Piano, Op. 75: III. Allegro appassionato
Partita for Violin Solo No. 2 in D Minor, BWV 1004: V. Ciaccona
Dessus la rive de la mer, ya trois belles filles
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb92634894e671c5b8af76bda0fe80cf16152a3a933bfc7043f463857c7693956. 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/QZKWA2026582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46bbd9790d8416c186edf62df9b5333cae6a0ec79e0ebd9b96569d121df3ad1a. 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/FRZ131375010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x788d64f2189d7b5f3e801364ef370d5317a3027bb49257ef22346ea45fd8b201. 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/FRZ131375030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c7255102e6f2cb8bb3712f0b4ac1fe5e9b64ed731f16d9ed631007019226a6c. 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/FRZ131375040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd041d927cf09e2b4a9db67ed6d1c8e2b8ed87464cce1d61a623d1dff9360d122. 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/FRZ131375050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a17f8985be6ab4525551ae8492a74d33562f2af4eb43dea91894f1e9082279c. 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/FRZ131375060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebcc980f316f6ac2171dad6be4c31413b87c495f9d86ac1194baa65886bdcf1e. 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/FRZ131375070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13e4bb361e68297e81436b1497a6edb17589ec8a5f8b68953ab6d90ff9ef4f5f. 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/FRZ131375080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01fba9b4415d70609ef215b9b53c9784f327402ce911c5ad1c07c8744f54ed87. 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/FRZ131375090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x346ac6dd73d564524ba068884a4f3be7fc65e86961d85ed0a482dc9c835c6b2e. 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/FRZ131375100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa24bcc7425894b9f8822914a811a6d5b1a925995b2c2dae4ee9a70d917aac92d. 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/FRZ131375110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6145256e78339f0bc1cff84439f54f5512cc4837a5988609e1caa6c127f22c8d. 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/FRZ131375120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d0c71def9b8d400b1b59bb16709840ba20793010e02a9727dcc1ad762930301. 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/FRZ131375130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8ebec5fc87c57e87dc6befca1f811743837f37055d4d2558f6ee2771624cbd1. 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/FR7MS2091013.