Gerd Albrecht (19 July 1935 – 2 February 2014) was a German conductor. Biography Albrecht was born in Essen, the son of the musicologist Hans Albrecht (1902–1961). He studied music in Kiel and in Ha
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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x544e2d7ff2c015d03305c456d622f24ef0786a872d2de6ca0e0a6e22b5e48294. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3fc66c1b-1a67-4173-9fbd-97ea2dd1505b.json and https://artists.proofprofile.net/proofs/artist/3fc66c1b-1a67-4173-9fbd-97ea2dd1505b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Brahms: Triumphlied, Ave Maria, Schicksalslied & Nänie
Mendelssohn: Violin Concerto in D Minor, MWV O3: I. Allegro
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ffc468006e34ae69c9bc797ef7064301cf20194718b2b62b767b3e456b04029. Chain 2 (Bitcoin): anchored in block 960430 (2026-07-31T16:09:41Z), 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/DEC628500419.
Mendelssohn: Violin Concerto in D Minor, MWV O3: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25a209fa91bdaecdf99ee914a5de8b8ee18e5214d305c7dfef28bb70bb97d28a. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/DEC628500420.
Mendelssohn: Violin Concerto in E Minor, Op. 64, MWV O14: I. Allegro molto appassionato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c99ff9d6cf3255b31f4f9eb3347ca56c56715067e417cef4840097dc5a78766. 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/DEC628500525.
Mendelssohn: Violin Concerto in E Minor, Op. 64, MWV O14: III. Allegretto non troppo - Allegro molto vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84bfb869dfaa09b747aa7b12aefea24a003c7c524a39a3a73bb26a8c862a94f8. 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/DEC628500418.
Zemlinksy: Der Traumgörge, Op. 11 (Live)
Composers In Exile - Zemlinsky, A. Von / Schreker, F. / Schulhoff, E. / Ullmann, V. / Hindemith, P. / Schoenberg, A. / Milhaud, D.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x144cc490cc6615a5d71eb84fd77134e45a833031c9a8ff93a378b569fc4c1b67. 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/US2TL0943804.
Duo for Violin and Cello: II. Zingaresca: Allegro giocoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b9644b8ffaadab9d564a8e71f56ea7da8b5fe04719a1b94f19d6fda51a41945. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/US2TL0943806.
String Quartet No. 1, Op. 5: I. Rhythmique
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d40f1d0fe741e14cff3921e020cefb72ede2f0ad01bea6c552cccb587238398. 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/US2TL0943819.
String Quartet No. 1, Op. 5: II. Intime, contenu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc48b9e217f7398903b037398dfb7b0c5161df313b747d93ccd4a2384fc96b2e6. 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/US2TL0943820.
String Quartet No. 1, Op. 5: III. Grave, soutenu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10a72fbe81980cfdae1d86a015af8f09f50cb9e04ab75f406ed11df7d3737387. 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/US2TL0943821.
Kleine Sinfonie, Op. 29: I. Thema mit Variationen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9241d673635c0d57c6fa275d7d8cdecb6d2cc5fb0660b611e63b11e9fc5afa4d. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/US2TL0943823.
Dvorák: Svatební košile (The Spectre's Bride), Op. 69, B. 135
Busoni, F.: Orchestral, Chamber and Piano Music
Prokofieff: Peter und der Wolf / Saint-Saëns: Der Karneval der Tiere
Dvořák: Dimitrij. Opera in 4 Acts, Op. 64
Dvořák: Čert a Káča (The Devil and Kate) Die Teufelskäthe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2da6e29b31c563cc73303f11e3e0fa59d56bf61803c9b4d6c68cd6c3ac4ac20. 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/DEB950877701.
Čert a Káča, Op. 112, B. 201, Act I: Act I: Proc tak brzy, ovcaku (Farmhands)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29f09b22a5b38f3a385f819e37be86e5ceb8abec1f6393ab96ecbaf3809b4002. 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/DEB950877702.
Čert a Káča, Op. 112, B. 201, Act II: Act II: Hellish Dance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7527523064018c65d73b7aca9539c020db5740670f9ab1ffdf77dccb4777e880. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/DEB950877720.
Čert a Káča, Op. 112, B. 201, Act I: Act I: Je sic to trochu daleko (Marbuel, Kathe, Chorus, Mother, Jirka)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19778fc8beb924984bfa6cddb9ded8afba72a018410143e22d47352e5ac18593. 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/DEB950877712.
Violin Concerto in E Minor, Op. 64: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x939c59c627f32a7af2b9fc79421e27b28bb009488868a22982e9c0cdcb2f1ab8. 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/DEC628500417.
Violin Concerto in D Minor, MWV O 3: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25a209fa91bdaecdf99ee914a5de8b8ee18e5214d305c7dfef28bb70bb97d28a. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/DEC628500420.