ISRC ATTE41700303
Verified recording
ATTE41700303 is “High School of Violoncello Playing, Op. 73: Etude No. 3 in B-Flat Minor - Andante” by David Popper,
registered on the CopyrightChains blockchain with CopyrightID
0xf0c4b2d51c88068c240170c72baea0b3bb2e0ab167731cad61a8b88e3b59be85 and independently timestamped
in Bitcoin block 960441 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATTE41700303.
Recording identifiers
- ISRC
- ATTE41700303
- Title
- High School of Violoncello Playing, Op. 73: Etude No. 3 in B-Flat Minor - Andante
- Artist
- David Popper
- CopyrightID (CopyrightChains transaction hash)
0xf0c4b2d51c88068c240170c72baea0b3bb2e0ab167731cad61a8b88e3b59be85
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T17:29:52+00:00
- Bitcoin block
- 960441
- Canonical record hash
sha256:54b85abb72ad0fb713b4fb600100af6615943ab8593300df43fe4d84d97d3f8b- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATTE41700303
- Bitcoin block existence check
- https://blockstream.info/api/block/960441
Full record
Track page: High School of Violoncello Playing, Op. 73: Etude No. 3 in B-Flat Minor - Andante · Machine-readable JSON-LD