Sonata No. 1 For Cello And Piano, Op. 52: II. Andante Sostenuto

Recording by Leo Ornstein.

Recording identifiers

ISRC
US4QP0765509
Release date of the album this recording appears on
2007-01-01
CopyrightID (CopyrightChains transaction hash)
0xc71ad182770e524ddf77f0672fedbc820e068f0cc0dbf5aa34a87515bede639a
Copyright registration time
2026-07-29T22:16:55+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-29T22:48:59Z
Bitcoin block
960160
Canonical record hash
sha256:322393e304bd970ab9e5e09fded9070adafcc3b99ec12fad3a2c607946d8b46d

What this proof establishes

This recording was released in 2007, 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.