Piano Sonata in E Flat Major - No. II

Recording by Carlos Marquez.

Recording identifiers

ISRC
GBSMU2812649
CopyrightID (CopyrightChains transaction hash)
0x6097edc3b3eea7becf8160112693f047b7915eee52bfad3315fc710ab8712826
Copyright registration time
2026-07-06T18:23:52+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:93e8571a122962c3de63dd2d143400bacdd089107e278a9dcdb416380f3a843f

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.