Galina Ivanovna Ustvolskaya ( ) (17 June 1919 – 22 December 2006), was a Russian composer of classical music. Known as "the lady with the hammer", her music has been described as demanding "everythin
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 0xc817791eb8c33d084af49be2bae67eef4288d8a08b5bf066887b3cd7b6988676. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0da52a95-d4a6-46f8-9145-604e897e8d3c.json and https://artists.proofprofile.net/proofs/artist/0da52a95-d4a6-46f8-9145-604e897e8d3c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ustvolskaya, Silvestrov & Kancheli: Works for Piano & Orchestra
4 Postludes for Piano & String Orchestra: No. 1. Larghetto - Andante
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 0xdc3fce350703dee0b219ccbe983a1764d3a1421f594e93d76e48385a4c035702. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HKI191535302.
4 Postludes for Piano & String Orchestra: No. 2. Moderato, con moto (poco rubato)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27b827da0c91342fd3ebaefd9116e45c7286c10f98af0f25d6a9db4df126c56c. 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/HKI191535303.
4 Postludes for Piano & String Orchestra: No. 3. Larghetto, con moto (poco rubato)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc73e3d40210888dfc2d1ae052f6ec08285fef4ca0cafd4ba14863b49666754fd. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HKI191535304.
4 Postludes for Piano & String Orchestra: No. 4. Larghetto, con moto (poco rubato)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc27a8f32ad4ee488dc96b707b4a2b4b46b0d470a03fbf253f397ca67115a31e. 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/HKI191535305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bbdd644ab31b37bac3e6b77545ee8b7a116cbbacbb74263c83a27f05151a967. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/HKI191535307.
Concerto for Piano, Strings and Timpani (original version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29392f5494c06196f26a4af5f86e1cc740556a4e99f95d7b9ec46e3f14c80da4. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/HKI191535301.
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
Gubaidulina, Ustvolskaya, Górecki & Pelécis : Piano Concertos (Apex)
Pelécis : Concertino bianco for Piano in C major : II Con venerazione
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23d586966422506ee8176e77c7f43c3e70ac253e56291d25ef881bb70e89cd08. 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/FRZ209503702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bb238998cec0a4950b16bcdb913f7baa62939e59d27d4f1e24d68590828e3cf. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/FRZ209901490.
Alexandre Rabinovitch-Barakovsky: Anthology of Archaic Rituals - in Search of the Center
Silvestrov, Pärt, Ustvolskaya: Misterioso
Post Scriptum - Sonata For Violin And Piano: 2. Andantino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x285a97589f4227fe8ccbd01977ef6fb68591c9be27ebf21b00d0a85667e0d808. 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/DEB330595902.
Post Scriptum - Sonata For Violin And Piano: 3. Allegro Vivace, Con Moto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7fa0d9604b6c9e674942b0452991986a4c7779768392304c242371b25a3ac1a. 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/DEB330595903.
Spiegel im Spiegel - For Clarinet And Piano: 1. Spiegel im Spiegel
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52978374e118a2ed965742d23321c6c53337641002251e752343a2ec08a808c4. 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/DEB330595905.
Trio For Clarinet, Violin And Piano: 1. Espressivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb32e9ef8d0391c3100818d1efe311fc8c9242459f4e5c4f5e8f9546cd4354bf1. 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/DEB330595906.
Galina Ustvolskaya: Piano Sonatas Nos. 1 - 6
Ustvolskaya: Complete Music for Violin & Piano
幻想的小品集, 作品3: 第2曲 前奏曲 嬰ハ短調
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0abfecbd55e4cff139502dde62e65fe073168b38874d83d149e09f87d090d9f. 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/JPG201921635.
ウストヴォーリスカヤ：ピアノ・ソナタ第1-6番、12の前奏曲
Ustvolskaya & Schnittke: Works for Cello & Piano
Russian Piano Music Series, Vol. 11: Galina Ustvolskaya
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab98e27109fbd6813ba3a987bb03e721378848dc09d38cddb9e9da8c9c66939. 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/DEGF70910507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd437f8b7eb4b74b8b8f46987a0e87695f1cbc38de643896113629572bad5bd89. 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/DEGF70910401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22f833bcd5db15fd0d272205281ce0fc85ebbd1989cb3d6de9404492e7284a35. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/DEGF70910515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40e7a03a49009dc41784f60104c9d9c579e2df9e8441d37c65bd74860c7a99bc. 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/GBX3U1105447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f66599de908e625d2220dfd63e2b43a792995bc8a0a9191ab223214237b9c41. 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/GBX3U1105459.
Ustvolskaya: Komposition Nr. 2 "Dies irae" / Sonate Nr. 6 / Großes Duett
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e607e3d22f583a4d8b9b174b32aea0a1a1e656e7767e48f424a6652ac45474. 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/NLA509407501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61bf3028ff2517500dfbcd0d6b53f8c22d26704d68400b2a67930810995b95d1. 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/NLA509407502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f91191a3c40c66085f7e68b8383488d49f01569cbff5d7179940640a946d4cf. 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/NLA509407503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1df9ce451f1b731882a06eef7ada9c89bd5efba7414932c578fe2f7206b44091. 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/NLA509407504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0629d651afaadaddc423401d260da4239991e5c824ab5313c92ea1c0a43f882f. 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/NLA509407507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bed271d7b8eb7934eb7f2c5a5e4e144ad50733b413acf1fef60de40e6ce588d. 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/NLA509407508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea36ea8c7bb5a20d4ffca8dcc033fe724b04262996b0b1ef4f45c626924a0b2d. 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/NLA509407511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x188f0898e58e5e328829a196331969d80ccafbee4910e5c8bbb3dd67629e1a54. 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/NLA509407505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca8dc2dbffab50e33d5ad477d3997843cab4889a7f484c0b44b7b6b9e520957a. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/NLA509407506.
Ustvolskaya: Concerto for Piano, Strings & Timpani (Live)
The Barton Workshop plays Galina Ustvolskaya
Slowakische Erinnerungen aus der Kindheit (1956/1989): No. 20, Knabenschwermut
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeab9bc2123b4f7a7c98f80e170afa5f8df5ceef5fe8a4442a6f625fa7408a284. 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/ATTE41501802.
6 Encores for Piano (1965): No. 3, Wasserklavier
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f9416efb18dd2bc90dbdfa67a41667f515d3eff6dec23523e403ea65cb4b31b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ATTE41501815.
Piazzolla, Ustvolskaya, Schnittke: Works for Cello (Russia, 1996)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6df6caf0e04cf43a2d15bc280186e7cd6d7a5af6892b80fb999a945c980f34cd. 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/GBPFW1600281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf31b8ae3966614acaf24aca7d011e81c5f442bfd837cbcae17625918a75559a9. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/GBPFW1600282.
Arden, David - Contemporary Piano Music: Piano Music By Part, Gorecki And Ustvolskaya
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf96d800a528ef2da0cb0dc6ab6d15ac732f048edbefce6af8326122e10e0c3f1. 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/USZGD1800299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee7c85f2ca404e4cfa624e5a626d7ba1f97f47e23d836f3b2babd4485a7362f7. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/JPP591252393.
Beethoven: Piano Concerto No. 2 - Ustvolskaya: Concerto for Piano, Strings & Timpani (Live)
Resistance: Conflict, Complexity, Conversations
Salzburg Biennale: Festival for New Music 2009
Stravinsky: Petrushka; Prokofiev: Piano sonata No. 5 & Ustvolskaya: Piano sonata No. 2