Piano Sonata in G Minor - No. I

Recording by Carlos Marquez.

Recording identifiers

ISRC
GBSMU2812651
CopyrightID (CopyrightChains transaction hash)
0x14b4fd8a8ae2d122d547968fbe06f087526de58774de25ad5d1bc41049ff5a8e
Copyright registration time
2026-06-11T18:57:46+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:9ca668aeb7748c6cc2afb563ddd4fc5ad0990066c46167a3711f48b7e9ca23da

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.