Waltz Caprice

Recording by Hamilton De Holanda.

Recording identifiers

ISRC
QM6N21440328
CopyrightID (CopyrightChains transaction hash)
0x61bfbfe4b73ae28999df73124f736a50ad442e5df2035c34ddf5526b9834149f
Copyright registration time
2026-07-31T16:48:22+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T17:29:52Z
Bitcoin block
960441
Canonical record hash
sha256:495876bd35008b368e8ed3c60f13f78f648b92dfe9d596799fa517f52000a4fe

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.