ISRC ATTE41700311
Verified recording
ATTE41700311 is “High School of Violoncello Playing, Op. 73: Etude No. 11 in F Major - Moderato” by David Popper,
registered on the CopyrightChains blockchain with CopyrightID
0x6015512af1c2bae0f9e1c71b3ed32569cf35e83849db7548c22b3a4584d1a4b8 and independently timestamped
in Bitcoin block 960344 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATTE41700311.
Recording identifiers
- ISRC
- ATTE41700311
- Title
- High School of Violoncello Playing, Op. 73: Etude No. 11 in F Major - Moderato
- Artist
- David Popper
- CopyrightID (CopyrightChains transaction hash)
0x6015512af1c2bae0f9e1c71b3ed32569cf35e83849db7548c22b3a4584d1a4b8
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T04:14:58+00:00
- Bitcoin block
- 960344
- Canonical record hash
sha256:d2508f54241382338a02c2e1d0e7a0803ee8ba8569360875b49d4eb2faa33ce5- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATTE41700311
- Bitcoin block existence check
- https://blockstream.info/api/block/960344
Full record
Track page: High School of Violoncello Playing, Op. 73: Etude No. 11 in F Major - Moderato · Machine-readable JSON-LD