Valse Melancolique No. 8 in G Minor

Recording by Carlos Marquez.

Recording identifiers

ISRC
GBSMU2852775
CopyrightID (CopyrightChains transaction hash)
0x69ed3364b80176e99fb6554fb24d41ac0d0ed50e3aaeb03a04fc25f7ca79837e
Copyright registration time
2026-06-21T11:08:37+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:407b11d84960a20b7baea40cbc226c27b5455be80bf84b4ea02126c421836b92

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.