ISRC HKI190834203
Verified recording
HKI190834203 is “Hohe Schule des Violoncello-Spiels (High School of Cello Playing), Op. 73: Etude No. 3 in B-Flat Minor” by David Popper,
registered on the CopyrightChains blockchain with CopyrightID
0x6abecb207d6aae82d6d5f798bfe30cb5539514f162683c5aefd63a6d4ba81e2f and independently timestamped
in Bitcoin block 956304 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190834203.
Recording identifiers
- ISRC
- HKI190834203
- Title
- Hohe Schule des Violoncello-Spiels (High School of Cello Playing), Op. 73: Etude No. 3 in B-Flat Minor
- Artist
- David Popper
- CopyrightID (CopyrightChains transaction hash)
0x6abecb207d6aae82d6d5f798bfe30cb5539514f162683c5aefd63a6d4ba81e2f
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:ed66faa5a48e0c1499f3f1d6d448a7b02ccf76afe3e0f726d9b846a01409133a- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190834203
- Bitcoin block existence check
- https://blockstream.info/api/block/956304
Full record
Track page: Hohe Schule des Violoncello-Spiels (High School of Cello Playing), Op. 73: Etude No. 3 in B-Flat Minor · Machine-readable JSON-LD