Introduction and Variations on a Theme by Mozart in E Major, Op. 9 (Introduction - Thème - Variations I, II, III, IV, V)

Recording by Fernando Sor.

Recording identifiers

ISRC
BEE022411708
Release date of the album this recording appears on
2024-09-13
CopyrightID (CopyrightChains transaction hash)
0x463aff0dd1736ac2bdb0f170b65ef67de887a3e46a06247a2e949659d64570cf
Copyright registration time
2026-07-30T02:12:21+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T02:30:29Z
Bitcoin block
960199
Canonical record hash
sha256:079e1d125a01eee38942f966aa2b0d62cee29b63aef368116984becf137ac8d1

What this proof establishes

This recording was released in 2024. ProofProfile's artist catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and this recording entered the record through cc-db-prod's ISRC-linked registration. Its provenance rests on the dates stated above rather than on the era of that source corpus.

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.