ISRC ATTE41700305
Verified recording
ATTE41700305 is “High School of Violoncello Playing, Op. 73: Etude No. 5 in A Major - Allegro Non Troppo” by David Popper,
registered on the CopyrightChains blockchain with CopyrightID
0x80b7f6a8feee8fb5d8714e92175a89cbded47e1c2c60752662bffae0f532f60f and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATTE41700305.
Recording identifiers
- ISRC
- ATTE41700305
- Title
- High School of Violoncello Playing, Op. 73: Etude No. 5 in A Major - Allegro Non Troppo
- Artist
- David Popper
- CopyrightID (CopyrightChains transaction hash)
0x80b7f6a8feee8fb5d8714e92175a89cbded47e1c2c60752662bffae0f532f60f
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:65bc53717ab3066db0bd4665b4349700871f363086fda60292b061ca5158056c- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATTE41700305
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: High School of Violoncello Playing, Op. 73: Etude No. 5 in A Major - Allegro Non Troppo · Machine-readable JSON-LD