ISRC ATTE41700307
Verified recording
ATTE41700307 is “High School of Violoncello Playing, Op. 73: Etude No. 7 in A Major - Lebhaft” by David Popper,
registered on the CopyrightChains blockchain with CopyrightID
0x8ecbe7b4047196ebdcc323d2c07b3c513de12ae568b87700235cbcc694799a0a and independently timestamped
in Bitcoin block 960435 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATTE41700307.
Recording identifiers
- ISRC
- ATTE41700307
- Title
- High School of Violoncello Playing, Op. 73: Etude No. 7 in A Major - Lebhaft
- Artist
- David Popper
- CopyrightID (CopyrightChains transaction hash)
0x8ecbe7b4047196ebdcc323d2c07b3c513de12ae568b87700235cbcc694799a0a
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T16:33:26+00:00
- Bitcoin block
- 960435
- Canonical record hash
sha256:8a70ac7fb9862f8cc20ca562b163d78ca6c07341d86902bd275f437058853e5c- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATTE41700307
- Bitcoin block existence check
- https://blockstream.info/api/block/960435
Full record
Track page: High School of Violoncello Playing, Op. 73: Etude No. 7 in A Major - Lebhaft · Machine-readable JSON-LD