Reveries for Charlotta - No. 4 in C Minor

Recording by Carlos Marquez.

Recording identifiers

ISRC
GBSMU6349470
Release date of the album this recording appears on
2019-05-31
CopyrightID (CopyrightChains transaction hash)
0x12b963d523b66d656f7e73f7dc8985b1934b99990708b7607b9a394c1763864c
Copyright registration time
2026-07-31T05:43:42+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T05:49:18Z
Bitcoin block
960355
Canonical record hash
sha256:e27e477f6c3513f53a4c08f44842d8fa80e80228aec148fe6b25e1cf95f3e816

What this proof establishes

This recording was released in 2019, 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.