ISRC ATTE41700301
Verified recording
ATTE41700301 is “High School of Violoncello Playing, Op. 73: Etude No. 1 in C Major - Allegro Molto Moderato” by David Popper,
registered on the CopyrightChains blockchain with CopyrightID
0x61fa33f6f0b8e3cfa9c4164ed956e7b63270cd095b15d0e900bbdd30f57e3e58 and independently timestamped
in Bitcoin block 960348 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATTE41700301.
Recording identifiers
- ISRC
- ATTE41700301
- Title
- High School of Violoncello Playing, Op. 73: Etude No. 1 in C Major - Allegro Molto Moderato
- Artist
- David Popper
- CopyrightID (CopyrightChains transaction hash)
0x61fa33f6f0b8e3cfa9c4164ed956e7b63270cd095b15d0e900bbdd30f57e3e58
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T05:17:02+00:00
- Bitcoin block
- 960348
- Canonical record hash
sha256:6292a9beda302cdd0e043a208d44d4e383212fd2ccc76980ccbffc547032796d- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATTE41700301
- Bitcoin block existence check
- https://blockstream.info/api/block/960348
Full record
Track page: High School of Violoncello Playing, Op. 73: Etude No. 1 in C Major - Allegro Molto Moderato · Machine-readable JSON-LD