thumb|SWR Symphonieorchester at Strawinsky Saal in Donaueschingen 2018 The SWR Symphonieorchester (SWR Symphony Orchestra) is a radio orchestra affiliated with the Südwestrundfunk (Southwest German Ra
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 0x7368144137cdaf9078669f3eac713c9d3c2980eabdfbf573831cc7c670e7c6d9. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8782fff4-6eb2-4247-8bc8-5b49d7216bdf.json and https://artists.proofprofile.net/proofs/artist/8782fff4-6eb2-4247-8bc8-5b49d7216bdf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Irmgard Seefried (Recorded in 1944-1967)
Shostakovich: Symphony No. 11 in G Minor, Op. 103 "The Year 1905"
Jakobín, Op. 84, Act II: Act II Scene 1: Serenade (Benda, Jiri, Terinka, Chorus, Children's Chorus)
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 0xbd127bf67586db17eaae2c39990a1931ec11822e087947a427c1eb17b5e5ee74. 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/DEB950464114.
Jakobín, Op. 84, Act I: Act I Scene 3: Uceny pane, dobry den! (Benda, Terinka, Jiri, Filip)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe93179ed310226d9c107adb64001de8bf44580bd0895c61c2c2d0a18e3759aaf. 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/DEB950464104.
Jakobín, Op. 84, Act I: Act I Scene 4: Zle je, zle je, ha, ha, ha, ha! (Boys Chorus, Jiri)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dbc79ec2bf61ebad6e33911847077bd6940a6f2cfd8550bbc05d5d246c7e19f. 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/DEB950464105.
Jakobín, Op. 84, Act I: Act I Scene 6: To mne stat! Tak ctite pana! (Filip, Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7651a69caee4b72614135356dc3581aac764614101b2cb32686040f12473d571. 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/DEB950464107.
Jakobín, Op. 84, Act I: Act I: Introduction
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5848fa5035b0d406984659ceb6584c106bc5941bd925bfd1d4d3fc054d062526. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/DEB950464101.
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
Jakobín, Op. 84, Act I: Act I Scene 1: Sve hlavy v prachu sklanime (Chorus, Bohus, Julia)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb89d5745e2a3d2151961005f71c7c50bcfaf91c8aa7f1610a78ff7eb4431458e. 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/DEB950464102.
Jakobín, Op. 84, Act I: Act I Scene 2: Jen postujme tu okamzeni (Chorus, Children's Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe235be2341cac51b7c0246093e389d06884d009e7a797e31d8bb34c7565081fe. 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/DEB950464103.
Jakobín, Op. 84, Act II: Act II Scene 2: Ach boze, bozinku (Terinka, Jiri)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x805af0197a6dab31278a157fcb032f445eb3c156a718df6d1904355d68823266. 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/DEB950464115.
Jakobín, Op. 84, Act I: Act I Scene 5: Ja stastne, se ho zbavila (Terinka, Jiri, Filip, Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x689916988d5c4631e8a2f6ac80e57faa726234d5bc4a50f8748ac80e1c1c70a5. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/DEB950464106.
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 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/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 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/DEB950877702.
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 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/DEB950877712.
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.
Beethoven the 5th: 13 Times the Same and 13 Times Different
Symphony No. 5 in C Minor, Op. 67: I. Allegro con brio (6)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85bb9a1fb16a05946e4b0710355ea67e35ae9619e00849bc308e48f7bc0b15b5. 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/HKI190716101.
Violin Concerto No. 1 in B-Flat Major, K. 207: III. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfae209914aaebfa494113ed25ad640d888f0448218b5bf84b7c9ef2450c997b0. 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/HKI191924103.
Violin Concerto No. 3 in G Major, K. 216 "Strassburg": II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6691f7537b0632af2610db52e7b546a0b3babf902f922dedbaa707706d5f3baf. 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/HKI191924105.
Violin Concerto No. 5 in A Major, K. 219 "Turkish": I. Allegro aperto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaabd0a79da47fa5c4d0290cd393c7d2ac14137b0a604646d1221b966b24ec7fc. 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/HKI191924114.
Violin Concerto No. 1 in B-Flat Major, K. 207: I. Allegro moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe5e9276675c2f27fb052a7351c93b6e34f7e20f9e649b50a60858e893c78057. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/HKI191924101.
Violin Concerto No. 1 in B-Flat Major, K. 207: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc9f318ded3c339b23f90e3df2605ee8271997e3c890099dbdb71ce2e967d0b7. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/HKI191924102.
Violin Concerto No. 3 in G Major, K. 216 "Strassburg": I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dd5bec07e467cd65dfd0a3a3243fd8b23e3ebe0de45ef79c10e797fa78b74f7. 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/HKI191924104.
Violin Concerto No. 4 in D Major, K. 218: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39efd01bc4756571e0d27584e2db3b70d92f5c5b6ee9c2c350e83eb98b607ec8. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/HKI191924107.
Violin Concerto No. 4 in D Major, K. 218: II. Andante cantabile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe71b1f200a1bcadf646b03f33496732381bce47af7f4ba0e4c82c5830349efcf. 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/HKI191924108.
Kapustin: Piano Concertos Nos. 2 & 6 & Other Piano Works
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12acc3a13ba84cb1540ed26e8184e06184c66d54e4dcc08c64ee7f9274aade4c. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/DEB262400500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa177cf118274e17e5c4276fb8d36f10f9bf3c8e30c8bba042037775fd0a49a2e. 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/DEB262400501.
Piano Concerto No. 2, Op. 14: I. Allegro molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc779d2bda93dca821f105c8261a850f18fb753c456fda037ef83f8d9c48b5c22. 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/DEB262400502.
Piano Concerto No. 2, Op. 14: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf34137e2e45e983569ff2b20115b767b3c1c5a12bc8f63fb5aab389d424332f0. 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/DEB262400503.
Piano Concerto No. 2, Op. 14: III. Rondo-Toccata. Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x582cdba6dda310d0343e5782cf4a05722f6a0eac49fb1adf60f89bec1400c1e3. 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/DEB262400504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e542396a1e18e29dc5ca3aaf63170fa82ae25ce053d8733fbc6868cd10058b1. 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/DEB262400505.
Concert Rhapsody for Piano & Orchestra, Op. 25: I. Introduction
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e136f53c75693df1fc4c14f0f76d0aa17a9bf70fee81f6949226cb541d85fbe. 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/DEB262400506.
Concert Rhapsody for Piano & Orchestra, Op. 25: II. Humoresque
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd63a9320a1a7e875bbf4a0e9ca7642b409d70092c482d8fc629fbdadb4b1cdc2. 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/DEB262400507.
Piano Concerto No. 6, Op. 74: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa409e71102fb19d6bea18ca66354eb6493184579b1f4f568ff2988ccedd2bdfb. 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/DEB262400508.
Piano Concerto No. 6, Op. 74: II. Larghetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac531d6f011b7124a7a9f8eb0698c2dc8dbe364c3a205a4102009cd7b5c9c41c. 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/DEB262400509.
Piano Concerto No. 6, Op. 74: III. Allegro giocoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eddedf182ae9c3812475b26854475d5425c80d6e4521bc1df8ab0982701fb72. 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/DEB262400510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e63def1529a317696add3fa9c05e325219dcf9c7a74aae63fb75b1bd6b2678f. 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/HKI192140305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd908502d4078ee7c0e90dceace034edf613d70e640ba3a3dd0c1dc560614d41. 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/HKI192140306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a4155dd50f98668ed765ff41876a257a81391356d320cb341270faf0b4d2b10. 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/HKI192140307.
Variations, K103 "Aldous Huxley in Memoriam"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x946a08d9f465a6b1ed4fb55dd24bed8af52c5101f884f0ae04c08ca826fad261. 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/HKI192140318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89ddaec1d4132612ccf30bba5af5c71ff1cfcd1d08afbab28b995d9919931b8f. 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/HKI192140301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14f4a46a4f1f5aa5e434d76c5c908a60edce15726019d04b9358c7028e4b8376. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/HKI192140302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69711d5d73612baf30986786b1eb1a901653e376ba2a5cf32134fbd0b1184a95. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/HKI192140303.
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Symphony in C Major, K061: I. Moderato alla breve
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C.P.E. Bach, Chopin & Rachmaninoff: Works (Live)
Cello Concerto No. 2 in C Minor, Op. 77 (Live)
Mackie Messer: Brechts Dreigroschenfilm (Original Soundtrack)
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Lied von der Unzulänglichkeit des menschlichen Strebens
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Kabalevsky, Shostakovich & Tchaikovsky: Cello Works
Reger, Schubert & Schumann: Works for Piano
Brahms & Wagner: Works for Orchestra (Live)