Minor Waltz

Recording by Michel Portal.

Recording identifiers

ISRC
FRZ130600650
CopyrightID (CopyrightChains transaction hash)
0xdfda4ffbc2337f9232ecafb9966b0095511f132a5d2590f4aa6a1e42b3463d17
Copyright registration time
2026-07-06T20:00:26+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:3b64d0fbb1185417b8e818d03431e4ae33e91d91bda3681c96047b3d69844e50

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.