ISRC HKI190834204
Verified recording
HKI190834204 is “Hohe Schule des Violoncello-Spiels (High School of Cello Playing), Op. 73: Etude No. 4 in F-Sharp Major” by David Popper,
registered on the CopyrightChains blockchain with CopyrightID
0x876553cfe2f48db20595244d9496d999e0f32e2689151f6e98edf8bde1fed2f2 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/HKI190834204.
Recording identifiers
- ISRC
- HKI190834204
- Title
- Hohe Schule des Violoncello-Spiels (High School of Cello Playing), Op. 73: Etude No. 4 in F-Sharp Major
- Artist
- David Popper
- CopyrightID (CopyrightChains transaction hash)
0x876553cfe2f48db20595244d9496d999e0f32e2689151f6e98edf8bde1fed2f2
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:509e59e785ee6595975819960a79c95e667ebf14fcab492f53f81338807a63e6- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190834204
- 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. 4 in F-Sharp Major · Machine-readable JSON-LD