ISRC HKI190834303
Verified recording
HKI190834303 is “Hohe Schule des Violoncello-Spiels (High School of Cello Playing), Op. 73: Etude No. 23 in B Minor” by David Popper,
registered on the CopyrightChains blockchain with CopyrightID
0x18ea7288e32af575143cad091e929cd6f81300da7b65b63933e4ead953984e7c and independently timestamped
in Bitcoin block 960397 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190834303.
Recording identifiers
- ISRC
- HKI190834303
- Title
- Hohe Schule des Violoncello-Spiels (High School of Cello Playing), Op. 73: Etude No. 23 in B Minor
- Artist
- David Popper
- CopyrightID (CopyrightChains transaction hash)
0x18ea7288e32af575143cad091e929cd6f81300da7b65b63933e4ead953984e7c
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T12:24:41+00:00
- Bitcoin block
- 960397
- Canonical record hash
sha256:edec733fddd81a0d2b3b94b0f91a20f8ab1f3fbd7b20bf1884da52c2aa53aca0- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190834303
- Bitcoin block existence check
- https://blockstream.info/api/block/960397
Full record
Track page: Hohe Schule des Violoncello-Spiels (High School of Cello Playing), Op. 73: Etude No. 23 in B Minor · Machine-readable JSON-LD