thumb|Walter Braunfels in 1920 Walter Braunfels (; 19 December 1882 – 19 March 1954) was a German composer, pianist, and music educator. Life thumb|left|Braunfels in 1902 Walter Braunfels was born i
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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 0xf2c0f4f51d9c4e2a94d1d6a0b7f7c40c2d4d89c2fab31d1d1472e67169c58316. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6ec29e13-fbeb-4fcb-84a8-fe60a3cfeaea.json and https://artists.proofprofile.net/proofs/artist/6ec29e13-fbeb-4fcb-84a8-fe60a3cfeaea.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Braunfels: String Quartet Nos. 1 - 3; String Quintet in E-Flat Major, Op. 63
Braunfels: String Quartet No. 2 in F Major, Op. 61: II. Scherzo
Urlicht: Songs of Death and Resurrection
Königskinder, Act III Finale: Verdorben! Gestorben! (Fiddler's aria)
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 0x9944c2285b8b37bf34ab9d6feb69f01740bc319b08bdab863d512e153428261f. 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/FR7JM2376020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1a3af0c475f2aa7f6fa61f8aacbcce9471d38558d05a476c8d4b6a9873f7283. 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/FR7JM2376040.
Pfitzner & Braunfels: Piano Concertos (Hyperion Romantic Piano Concerto 79)
Jeanne d'Arc - Szenen aus dem Leben der heiligen Johanna
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Die Vögel / Act 1: Zu großen Taten, wie noch seit Weltbestehn
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x976595081244a882a6e73f3b18d819963d2683c2ae29e3406d77e8ab55c15ce8. 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/GBF079443506.
Die Vögel / Act 2: Hei! Hei! Hi! Ah! Wir kommen!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57f7fe6885a877309c1d40f17e90f50683abb0d74521c668a0ddd6edfdaebf55. 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/GBF079443526.
Die Vögel / Act 1: Haltet ein, verruchtes Vogelzeug
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Die Vögel / Act 2: Ah! Ah!...Groß ist Zeus! Mächtig ist er!
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Die Vögel / Act 1: Wie tut ihr Vöglein mir leid
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Die Vögel / Act 1: Dich zu ehren, wohl erbötig
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Die Vögel / Act 2: Ah! Ah! Narzissus, zitterst du im Licht?
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb675272641d1d2067c3deb5a3462b10c88f68f4ff410376a962ff02719e3387a. 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/GBF079443515.
Die Vögel / Vorspiel und Prolog: Vorspiel (Langsam und zart)
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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
Die Vögel / Act 2: Horch! Es wehet der Tag heran, ich gehe zu ruh'n
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07e3c93fbc8f2c9c42b768cda4188dddc19ce8d20912d1499af64b05677c50e8. 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/GBF079443518.
Die Vögel / Vorspiel und Prolog: Ach, ach, ach! Liebwerte Freunde, gegrüßt
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Die Vögel / Act 1: Graden Weges meinst du, wo die Bäume stehn?
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Die Vögel / Act 1: Wer ist denn da? Ruft hier jemand nach meinem Herrn?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98057fbf01b52d7810dc2603f71f130e6610138536acdc7a6b24ce0e72631e6c. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/GBF079443504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48af146fb23cad403743270aada5999edd18c27281614ffecfc57ebc7b1539aa. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/GBF079443521.
Die Vögel / Act 1: Tu auf den Wald, ich will hinaus
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Die Vögel / Act 1: Nun erwach, erwache mir Freundin
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce0b00e1615c498d24575ece24822b7f8e5524c73acddbcdaf12d28322a37438. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/GBF079443508.
Die Vögel / Act 1: Himmel, Himmel, Himmel, weh, o wehe, jetzt ergeht's
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9323a7a5ba1a5d6a59b57bed9e3a0c2c6e501c49a25ed5042665702b698840ce. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/GBF079443509.
Die Vögel / Act 1: Ach, der Zeit, wir ziehen fortan nicht zum Opfer
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Die Vögel / Act 2: Laß mich werden wie du
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Die Vögel / Act 2: Ich leih dir meinen sinn
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Walter Braunfels: Jeanne d'Arc (HD 48/24)
Braunfels: Konzert und andere Welt-Ersteinspielungen
6 Romances, Op. 6: VI. Nur wer die Sehnsucht kennt
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The Firebird Suite (1945 version): I. Introduction - Prelude and Dance of the Firebird - Variations
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The Firebird Suite (1945 version): IV. Rondo - Khorovod
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Braunfels: Phantastische Ersheinungen eines Themas von Berlioz, Op. 25 & Sinfonia brevis, Op. 69
Braunfels: String Quintet, Op. 63 & Sinfonia concertante, Op. 68
Braunfels: Carnival Overture, Scottish Fantasy, Hölderlin Songs & Prelude and Fugue
Braunfels: Don Juan, Op. 34 & Symphonic Variations on an Old French Nursery Song, Op. 15
Braunfels: Symphonic Variations / Sinfonia Brevis
Braunfels: String Quintet, Op. 63 - Strauss: Metamorphosen, TrV 290
Braunfels: Phantastische Erscheinungen, Op. 25 & Serenade, Op. 20
Braunfels: Verkündigung (Cologne Collection)
Braunfels: Variationen über ein altfranzösisches Lied für 2 Klaviere, Op. 46
Braunfels: Piano Concerto & Schottische Phantasie
Transylvania State Philharmonic Orchestra
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Gounod: Mireille, CG8: O légère hirondelle
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Braunfels: Die Vögel, Op. 80: Ach, ach, ach! Liebwerte Freunde, gegrüßt!
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