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 0xabe0584414ce7e2fac882141745ed5989645f5362c4fad108ddf724d4ea53a01. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/91b593f6-8fed-45f0-9b48-055a0ca85fbd.json and https://artists.proofprofile.net/proofs/artist/91b593f6-8fed-45f0-9b48-055a0ca85fbd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Menuetto Lounge - 111 Relaxing Masterpieces
Cappella Coloniensis / Gustav Scheck / August Wenzinger spielen; Georg Friedrich Händel: Concerto grosso Nr. 1 / Nr. 2, Op. 3, HWV 312
U. Grehling / D. Vorholz / H. Münch-Holland / E. Müller / Capella Coloniensis spielen: Georg Friedrich Händel: Concerto grosso (aus dem Alexanderfest), HW 318
Werke von George Frideric Handel: Serie A Orchesterkonzerte (Stereo Version)
Cappella Coloniensis / Ulrich Grehling / Dieter Vorholz play: Antonio Vivaldi: L'estro armonico, No 8
Pergolesi / Vivaldi / Woodcock / Blavet / Leclair: Flute Concertos
Flautino Concerto In C, R.443: 3. Allegro molto
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 0xbf401691e73794e28e700a858590afded46fd85f394a28886bd683e361af1f38. 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/DEF056201603.
Concerto for flute, Strings and continuo No. 9 ein E minor: 2. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fe99fbda3438a9e8942e08681d3565eed9e502de3ecca6b48f272ef159c6afb. 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/DEF056100802.
Concerto à 4 parties in A minor: 1. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf613c07631e349eb92efa79c922c6c02563509d31c0b3da7719d4abf0562ae4. 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/DEF056602621.
Concerto for Flute, Strings, and Continuo in G: 1. Spiritoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x250cf549ea81c44f2c96dcfa5a93370b3cd2de3ec9e0be1bef9082f12d058fb6. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/DEF056400731.
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
Concerto for Flute, Strings, and Continuo in G: 3. Allegro spiritoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbddb33082ede6cdb27bb9406a017ee47692ca1a70808f8c22aed94b522d87644. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/DEF056400733.
Johannes Brahms: Essential Chamber Music
Study Music - Classical Music for Thinking and Concentration
111 Classical Masterpieces from the Movies
66 Classical Masterpieces from the Movies
Blue Edition - Brahms: Waldhorn Trio, Op. 40 & Neue Liebeslieder Waltzes, Op. 65
Serenade No. 10 in B-Flat Major, K. 361 "Gran Partita": VII. Rondo. Molto allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2543fab815acd34030d22b0ba6708decb28aa30e40d9a564295070573dae01b4. 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/DEA580600852.
Blue Edition - Brahms: Waldhorn Trio, Op. 40 & Piano Concerto No. 2, Op. 83
Green Edition - Brahms: Waldhorn Trio, Op. 40 & Symphony No. 2, Op. 73
Green Edition - Brahms: Waldhorn Trio, Op. 40 & Symphony No. 1, Op. 68
Green Edition - Brahms: Waldhorn Trio, Op. 40 & Sonata No. 1 for Viola and Piano
Blue Edition - Brahms: Waldhorn Trio, Op. 40 & Tragic Overture, Op. 81
Mozart: Serenade No. 5 und 13 "Kleine Nachtmusik"
Suite for Orchestra No. 3 in D Major, BWV 1068: II. Air
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c0855a1d2c025086c45378fb3069c28b97536281d41ebeebfce8447696e7255. 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/USZDG0600527.
Suite for Violoncello Solo No. 1 in G Major, BWV 1007: I. Prelude
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x579d5084d238e85c4280594c3290490dfd0d6bfa7608284f1a04aaf52d9372b7. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEA580600612.
Water Music, Suite from HWV 348-350: VI. Alla Hornpipe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcefa3e93f4d67c48e00c03f2f4f26ef6fa99397884bf4101c2bdbb9c5067efd8. 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/DEA580600082.
Symphony No. 40 in G Minor, K. 550: I. Molto allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12175ff2176a221847102f0f4bb96d5a7d7ace7f60d400c7e60cf6500571397f. 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/CAM460870171.
Adagio in G Minor (Arr. by Remo Giazotto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb33a53524ad8a39f34bd108c964c799ef6319d8c548be713d5c080703e93b3c. 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/USZDG0600002.
Brandenburg Concerto No. 3 in G Major, BWV 1048
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ecf88671343300bed37a414916dbc9eb0e3e91aadad40b56814fbf079579033. 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/USZGD1681703.
Violin Concerto No. 1 in A Minor, BWV 1041
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c93f17a8c33f2d8cdf6dc1e0404830acd8d7be098d68424d2a6ea5e49300237. 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/USZGD1681707.
Violin Concerto No. 2 in E Major, BWV 1042
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde1d37023b7ea0a0d2a7edaa71fd7e5b8f74135e9914d0bd95c1bc02aed24e3e. 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/USZGD1681708.
Concerto for 2 Violins in D Minor, BWV 1043
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd5dc4e9a266562ffd1ebbb9c93b0cd1a2b2a07b4d1588501e9db8f8ce5a8439. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/USZGD1681706.
I Like the French Horn! (Menuetto Kids - Classical Music for Children)
I Like Bach! (Menuetto Kids - Classical Music for Children)
J.S. Bach: Violin Concertos and Solo Sonatas
Ich mag Horn! (Menuetto Kids - Klassik für Kinder)
Bach: The Complete Orchestral Suites and Violin Concertos
Ich mag Bach! (Menuetto Kids - Klassik für Kinder)