Prelude No. 1

Recording by Heitor Villa-Lobos.

Recording identifiers

ISRC
USHM81933311
CopyrightID (CopyrightChains transaction hash)
0x6039336f08014b034679168fec337830abf1f6c4950521177584eed845b4e3b6
Copyright registration time
2026-06-24T11:20:14+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:9eaa5d0864e66f8ddd4b3a6ab1c2d9a118796a6642d363ad64c13abdae31ffda

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.