Morton Feldman (January 12, 1926 – September 3, 1987) was an American composer. A major figure in 20th-century classical music, Feldman was an important exponent of indeterminacy in music, a developme
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 0x7eaf86318b0b83c3cac94b4a72547a8659036afeb40873432ffbd522f4df1fae. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/66ac638b-00b8-4cac-9d19-3fcb84d9bd4b.json and https://artists.proofprofile.net/proofs/artist/66ac638b-00b8-4cac-9d19-3fcb84d9bd4b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Feldman: Palais de Mari – Crumb: A Little Suite for Christmas
Helmut Lachenmann: Das Mädchen mit den Schwefelhölzern
Jürg Dähler · Viola Concertos / Signatures of Life – LIVE!
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 0x5875cda1bc5503dfbced039baa362856ecce385a7043523055e9607824c0cf2e. 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/USCRS0690921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x390ef8c305ed3c95c748e96f82410d7785158402184e54e3e14f2fe09922f1a0. 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/USCRS0690924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a57744435fd584290b2a06626895ec7ba9b206432e77279b43fc1981df3efaf. 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/USCRS0690925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba67133b25409e03fab55a42aafab47be0ed64d2251312c9cb078064bc5ccda3. 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/USCRS0690923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6abcd9291fd15ef3412803a2647dff281305c48b4e2cf9edd4d406e59539c221. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/USCRS0690922.
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 0xe6056ce2f4ad8b9c4c1bd6a2e03ef7efd1f06a92cc20010c3288f5f8dbe6a602. 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/DEB330179801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x699abff0d2ee9bd9f6952fef79866fbb2fb7860885a02104ba67c64823da5003. 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/DEB330179802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba2e388fbab723e619abac2141bbe318c98b27aa70cc73ecc772ffe62c4f3af4. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/DEB330179804.
Morton Feldman: For Philip Guston (1984)
Morton Feldman: Why Patterns? / Crippled Symmetry
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05d449eb44dd0842de46512d4f008824d96dbc3f7354114bf9ef11cce79d14cb. 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/QM6N21549861.
Morton Feldman: Patterns in a Chromatic Field
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42c75abf817e663650c7218b93e317d810c517cc150a28c8e7a9737a03fa6db2. 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/DEC441910089.
Morton Feldman: Something Wild - Music for Film
Something Wild in the City: Mary Ann's Theme (1960) for horn, celesta, and string Quartet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15d58b9e5a7541b66b1ebe30098f5c4db476f38c194b4afb155aedc6dee014e5. 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/ATK940222901.
Jackson Pollock (1950-51) for two Cellos: V Painting on Glass
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c7986029d196a3cc2c55ad2bdca5485e5d288405146d145b56efe2bc3e8a4a1. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ATK940222907.
Jackson Pollock (1950-51) for two Cellos: VI Painting on glass (2nd Sequence)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb333ac301c870e1f3ffbe438c209e9edbc8f1e838f5f3b227f6bf6c6777591af. 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/ATK940222908.
Samoa (1968) for flute, horn, trumpet, harp, vibraphone, piano, and Cello: I
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c00888637369795c5711e8e58c0f0e458f3355043f2f6b111023a81f1008c7a. 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/ATK940222909.
Samoa (1968) for flute, horn, trumpet, harp, vibraphone, piano, and Cello: II
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd55183e5f1f4c8c8ca7e81834efa2d610e88219b21ee712b98ffe6babdf722c9. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ATK940222910.
Samoa (1968) for flute, horn, trumpet, harp, vibraphone, piano, and Cello: III
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x282d6e4a074b5fd04fffa00621ff23f5a0a861a4729939f66aa798d613205e94. 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/ATK940222911.
Samoa (1968) for flute, horn, trumpet, harp, vibraphone, piano, and Cello: IV
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f0427140118fe96d4f3adbd6ba73a71e365cae815f1cbfa043396afead66d11. 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/ATK940222912.
Samoa (1968) for flute, horn, trumpet, harp, vibraphone, piano, and Cello: V
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4535fbd3808291c2ada52fdf30d3910e97eb5d7b4498a8b17c4f0b6294a142bf. 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/ATK940222913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58b684b27fcda9df5be9b3b668e3978967026e78627130fe20e62378a78bde66. 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/ATK940222914.
The Sin of Jesus (1960-61) [Score for untitled film] for flute, horn, trumpet, and Cello: A
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd72f7356494b2ba692fb63ad8774edb60e549646e93bbe0e708f401bcb48c57f. 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/ATK940222916.
The Sin of Jesus (1960-61) [Score for untitled film] for flute, horn, trumpet, and Cello: Cue II, very Soft
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcced7f80bc0163105380e543d87bd4e26079db69d2366528835322b73c5147cd. 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/ATK940222917.
The Sin of Jesus (1960-61) [Score for untitled film] for flute, horn, trumpet, and Cello: Cue IV - IV A, very Soft
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87a9cb71783f3ce3b482047fb29d839dde7309132097bd959f7961e4d0261e78. 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/ATK940222919.
The Sin of Jesus (1960-61) [Score for untitled film] for flute, horn, trumpet, and Cello: Cue V Solo Cello
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x631003d7f2a3977c265d01a7b809fcdcbdc56e104ab30722edd0ca2cabdc85b0. 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/ATK940222920.
[Untitled film music] (1960) for flute, horn, trumpet, trombone, tuba, percussion, and double Bass: Intro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x372e4f4e05deaf0ebe51792aeb5b6474c16c8c5f0345dd9dd6256e8958dcdefe. 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/ATK940222923.
[Untitled film music] (1960) for flute, horn, trumpet, trombone, tuba, percussion, and double Bass: City
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3290f9bf9834018e0f3918fffe3107357b03812779486de89760084b4665a73. 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/ATK940222924.
[Untitled film music] (1960) for flute, horn, trumpet, trombone, tuba, percussion, and double Bass: The Beach
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79a7f35e81c0784b53d62ff4d91d2cb502a3409ed6cf78eecea91e522e57b59b. 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/ATK940222930.
Jackson Pollock (1950-51) for two Cellos: II Pollock Paints
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x660defbaa89b7ea4f59efcb6e2eac34824f59d9a891f03fba90410c81469c906. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/ATK940222903.
Jackson Pollock (1950-51) for two Cellos: IV Detail of Paintings
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The Sin of Jesus (1960-61) [Score for untitled film] for flute, horn, trumpet, and Cello: Cue I - Cue III Ending at A
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa0b7a86136d3d07b97e6f1f960219e0ef5dcd30cc3f2f80c1dfe73340318627. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/ATK940222915.
The Sin of Jesus (1960-61) [Score for untitled film] for flute, horn, trumpet, and Cello: Cue V A
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb5ac1e16fa0d1c78e4bbdc2bba435510a9cb1478673cd1460f6a046b9e77838. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/ATK940222921.
The Sin of Jesus (1960-61) [Score for untitled film] for flute, horn, trumpet, and Cello: Cue VI
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46e505f937b7d0de0b0e09b785cc4a759d99fdc6ea5622b35531d40fd3bfe6b1. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/ATK940222922.
[Untitled film music] (1960) for flute, horn, trumpet, trombone, tuba, percussion, and double Bass: Theme
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33fd899602ccd3dc00a24610121e7c0c87a7ea1d5eb18c3098d0f1402f535494. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/ATK940222927.
[Untitled film music] (1960) for flute, horn, trumpet, trombone, tuba, percussion, and double Bass: The Park
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2333a76f3757c63f839a7b648512ca917ed756f5870eb7da92e0ae068071bfe9. 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/ATK940222929.
[Untitled film music] (1960) for flute, horn, trumpet, trombone, tuba, percussion, and double Bass: Desert
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c44515cccc86671471f2601880f7727beed107f7b2bffdc49b62a1ccb649c37. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/ATK940222932.
De Koonig (1963) for horn, percussion, piano/Celesta, violin and Cello
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dbb2ac61ee2a7c880d0b89cb66d39dc6e4d7cddf9257cd1ea87e430dae30628. 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/ATK940222933.
Morton Feldman: Coptic Light & String Quartet & Orchestra
Patterns in Motion - The Great Minimalists, Vol. II
Untitled Composition for Cello and Piano
Feldman: Complete Music for Cello & Piano
Morton for Guitar D (Actual Works 1950-1972, Opus Feldman Series)
Morton for Guitar A (Early Works 1947-1959, Opus Feldman Series)
Morton Feldman: Triadic Memories & Piano
Morton Feldman: Triadic Memo Pickups (Arr. for Guitar)
Feldman: String Quartet No. 1, Structures & 3 Pieces
Feldman, M.: For Bunita Marcus / Palais de Mari
Feldman: Rothko Chapel / for Stephan Wolpe / Christian Wolff in Cambridge
Feldman, Vol. 7: Late Works with Clarinet
Feldman, Vol. 4: The Straits of Magellan, Projections, Durations, & Two Pieces
Morton Feldman: Piano and String Quartet
Feldman, Vol. 3: Complete Music for Violin & Piano
Feldman, Vol. 1: Aki Takahashi Plays Morton Feldman
Morton Feldman: Patterns In a Chromatic Field
Feldman: Routine Investigations, The Viola in My Life, For Franck O'Hara, I Met Heine on the Rue Fürstenberg
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Rothko Chapel - Morton Feldman / Erik Satie / John Cage
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a1e0fbdfced2acfc370dc33f4caf337cbd0be438cf1077b7d23355806ff9616. 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/USSM11307914.