ISRC HKI190834309
Verified recording
HKI190834309 is “Hohe Schule des Violoncello-Spiels (High School of Cello Playing), Op. 73: Etude No. 29 in F-Sharp Minor” by David Popper,
registered on the CopyrightChains blockchain with CopyrightID
0x41e0abd1c99da5cb30c76f647c42b69e4301e9019394da9f1527bec08119928c and independently timestamped
in Bitcoin block 960448 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190834309.
Recording identifiers
- ISRC
- HKI190834309
- Title
- Hohe Schule des Violoncello-Spiels (High School of Cello Playing), Op. 73: Etude No. 29 in F-Sharp Minor
- Artist
- David Popper
- CopyrightID (CopyrightChains transaction hash)
0x41e0abd1c99da5cb30c76f647c42b69e4301e9019394da9f1527bec08119928c
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T18:48:12+00:00
- Bitcoin block
- 960448
- Canonical record hash
sha256:fbc594a48f67a44fce4cbc5453dcbdd0230a8cb217446ca6e3c02f2c17049d8c- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190834309
- Bitcoin block existence check
- https://blockstream.info/api/block/960448
Full record
Track page: Hohe Schule des Violoncello-Spiels (High School of Cello Playing), Op. 73: Etude No. 29 in F-Sharp Minor · Machine-readable JSON-LD