Fifteen Easy Melodic-Harmonic Etudes with an Accompaniment of a Second Cello: No. 4 - Leicht Bewegt

Recording by David Popper.

Recording identifiers

ISRC
ATTE41700214
Release date of the album this recording appears on
2020-03-01
CopyrightID (CopyrightChains transaction hash)
0xb83402cce3db226e91b30ba046d2a92e787c323a7300f205eae87ac045b4a259
Copyright registration time
2026-07-30T07:53:15+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T08:04:30Z
Bitcoin block
960225
Canonical record hash
sha256:432b249a5552189eab572b64f616645b354dc108da834a218595695c9cfc261c

What this proof establishes

This recording was released in 2020, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and ISRC is the stable recording-level bridge from that source corpus to the authoritative cc-db-prod track record.

CopyrightChains and Bitcoin OpenTimestamps make the exact committed record independently verifiable today. The cryptographic proof does not by itself establish authorship or ownership of the underlying recording.

Read the complete pre-generative-AI provenance and verification method.