ISRC HKI190834220
Verified recording
HKI190834220 is “Hohe Schule des Violoncello-Spiels (High School of Cello Playing), Op. 73: Etude No. 20 in G Minor” by David Popper,
registered on the CopyrightChains blockchain with CopyrightID
0x21ac6704b0b1a7f1cfc9cb25194114c73158f93047e4f49edddcbf31dbbb5c54 and independently timestamped
in Bitcoin block 960368 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190834220.
Recording identifiers
- ISRC
- HKI190834220
- Title
- Hohe Schule des Violoncello-Spiels (High School of Cello Playing), Op. 73: Etude No. 20 in G Minor
- Artist
- David Popper
- CopyrightID (CopyrightChains transaction hash)
0x21ac6704b0b1a7f1cfc9cb25194114c73158f93047e4f49edddcbf31dbbb5c54
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T08:26:41+00:00
- Bitcoin block
- 960368
- Canonical record hash
sha256:503d3291a8d728d5cbd5764fcd44bd670bc2c6023376b6452e5d87ab6639fc5e- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190834220
- Bitcoin block existence check
- https://blockstream.info/api/block/960368
Full record
Track page: Hohe Schule des Violoncello-Spiels (High School of Cello Playing), Op. 73: Etude No. 20 in G Minor · Machine-readable JSON-LD