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 0x83573a9652bc1c1d715f7d77753dac7d9032ce016ddc0ef97cf3c03aa61e0f30. 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/8641eaec-7f78-4ef0-b26f-4ab96ae60791.json and https://artists.proofprofile.net/proofs/artist/8641eaec-7f78-4ef0-b26f-4ab96ae60791.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Overture "A Midsummer Night's Dream", Op. 21, MWV P 3
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 0x45e1c09eaacf3f05cbea4c6dd68834eccc040a493ccfc3683987e33ced9e8c27. 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/GBBBA0500300.
"Lobgesang" in B Flat Major, Op. 52, MWV A18 / Sinfonia: Con moto maestoso - Allegro vivace
"Lobgesang" in B Flat Major, Op. 52, MWV A18 / Sinfonia: Allegretto un poco agitato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x524bb5689a3ce79df5b20f4958d4a5ffb9289dbe93692dbe0a1cc1536b82449e. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/GBBBA0542002.
"Lobgesang" in B Flat Major, Op. 52, MWV A18 / Sinfonia: Adagio religioso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad5ced395019ddd4633c267607a3414f6e3fb7be0ea1c592193ab99001c72438. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/GBBBA0542003.
"Lobgesang" in B Flat Major, Op. 52, MWV A18: "Alles, was Odem hat"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9aba9746eb847d0571f3093af48fd8c61b67738428445f0a4f7e0650ad43029. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GBBBA0542004.
"Lobgesang" in B Flat Major, Op. 52, MWV A18: "Lobe den Herrn"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3151e8628e60f6e662d74522cf5ce16f17148184fef8de0fb9476dc2cb051e04. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBBBA0542005.
"Lobgesang" in B Flat Major, Op. 52, MWV A18: "Saget es, die ihr erlöst seid"
"Lobgesang" in B Flat Major, Op. 52, MWV A18: "Sagt es, die ihr erlöst seid"
"Lobgesang" in B Flat Major, Op. 52, MWV A18: "Ich harrete des Herrn"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x966b492ff7403b49776b76185f1f4981e32baeeb6540adc6e6cc48aa5b8af18d. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBBBA0542008.
"Lobgesang" in B Flat Major, Op. 52, MWV A18: "Stricke des Todes - Und ich stand auf"
"Lobgesang" in B Flat Major, Op. 52, MWV A18: "Die Nacht ist vergangen"
"Lobgesang" in B Flat Major, Op. 52, MWV A18: "Nun danket alle Gott"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a9545f04faa92a52788e69964691e3d9b8508756a4b2d001f3c6c100c6e028f. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBBBA0542011.
"Lobgesang" in B Flat Major, Op. 52, MWV A18: "Drum sing' ich mit meinem Liede"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce6f0e23a205c17da8dc7c9564a9ef1b652781c79527745e2908ebab94179a21. 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/GBBBA0542012.
"Lobgesang" in B Flat Major, Op. 52, MWV A18: "Ihr Völker, bringet her dem Herrn Ehre und Macht!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2e3f3b4a782664c4e82d69d91c1052da0739c5e0c9271de18a511597aa4b96a. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/GBBBA0542013.
Symphony No. 4 in A Major, Op. 90, MWV N16 "Italian": I. Allegro vivace - 1984 Recording
Violin Concerto In E Minor, Op. 64, MWV O14: 2. Andante
Lieder ohne Worte I, Op. 19b: I. Andante con moto, MWV U86 "Sweet Remembrance"
Six Songs, Op. 34: II. Auf den Flügeln des Gesanges, MWV K86
Piano Concerto No. 1 in G Minor, Op. 25, MWV O7: III. Presto
Albumblatt in E Minor, Op. 117, MWV U134
A Midsummer Night's Dream, Incidental Music, Op. 61, MWV M 13: A Midsummer Night's Dream Opus 61: No. 1 Scherzo
The Hebrides Overture, Op. 26, MWV P7 "Fingal's Cave"
Schilflied, Op. 71, No. 4 (Transcr. for Cello and Piano by Mischa Maisky)
Symphony No. 5 in D minor, Op. 107, MWV N15 - "Reformation": IV. Choral "Ein' Feste Burg ist unser Gott!" (Andante con moto - Allegro vivace - Allegro maestoso - Più animato poco a poco)
Concerto in D Minor for Violin, Piano and Strings. MWV D4: II. Adagio