ISRC ATTE41700213
Verified recording
ATTE41700213 is “Fifteen Easy Melodic-Harmonic Etudes with an Accompaniment of a Second Cello: No. 3 - Andante Sostenuto” by David Popper,
registered on the CopyrightChains blockchain with CopyrightID
0xd5b3874be5704454ef0677f199b6cbe2c20eeb8e965fdcac202990ac8fe817d5 and independently timestamped
in Bitcoin block 957120 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATTE41700213.
Recording identifiers
- ISRC
- ATTE41700213
- Title
- Fifteen Easy Melodic-Harmonic Etudes with an Accompaniment of a Second Cello: No. 3 - Andante Sostenuto
- Artist
- David Popper
- CopyrightID (CopyrightChains transaction hash)
0xd5b3874be5704454ef0677f199b6cbe2c20eeb8e965fdcac202990ac8fe817d5
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:22:41+00:00
- Bitcoin block
- 957120
- Canonical record hash
sha256:644c4ded58efa30a655519d350422bba1fabc447d741c054eed67c44d4302577- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATTE41700213
- Bitcoin block existence check
- https://blockstream.info/api/block/957120
Full record
Track page: Fifteen Easy Melodic-Harmonic Etudes with an Accompaniment of a Second Cello: No. 3 - Andante Sostenuto · Machine-readable JSON-LD