Prelude No.3

Recording by Heitor Villa-Lobos.

Recording identifiers

ISRC
US4R31237688
CopyrightID (CopyrightChains transaction hash)
0x2a650452fc87963095da61ca6d84912a6a2e02681802e0901cd0fa0d1b432ce9
Copyright registration time
2026-07-07T13:21:50+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:3b6b41f55d5688cadb0aa51a390ebc3911b4349a7a85fa4cbe6db3b8a65121ec

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.