Forgotten Waltz

Recording by Juan Martínez Pérez.

Recording identifiers

ISRC
AUGBT2321523
CopyrightID (CopyrightChains transaction hash)
0xe0ffafcd7df847b87118a002f9fb290febde1f18be99422abf3903e6ae6a3eed
Copyright registration time
2026-06-18T06:14:56+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:28299b7b6b8b94aae5028e208deae7e2e455690a430fa16366da8578c27b7459

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.