Cello Concerto in A Major, H. 439: I. Allegro

Recording by Carl Philipp Emanuel Bach.

Recording identifiers

ISRC
GBAJY1611207
CopyrightID (CopyrightChains transaction hash)
0x9e8222dda0402bae75a4a987a5570e6e0e73f7250d15b25e3782341615a3d575
Copyright registration time
2026-07-07T11:07:38+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:7c4053173a6d21e6b137fe6ba3d883dd112308cb58fea9858f0e2117272157f4

What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. 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.