String Quartet No. 1: III. Canto lirico: Moderato

Recording by Heitor Villa-Lobos.

Recording identifiers

ISRC
USKC60910141
CopyrightID (CopyrightChains transaction hash)
0x79a34ad4af294380b4dd239a0b809cb54fd3f96542539bd57fc943593c908d7c
Copyright registration time
2026-07-30T21:45:26+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T22:27:30Z
Bitcoin block
960321
Canonical record hash
sha256:1348ba010f3280ec3cb72379677e54f7d7521b035e7f2d00469c7180424a5958

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.