I Let a Song Go Out of My Heart

Recording by Toots Thielemans.

Recording identifiers

ISRC
NLD015511006
Release date of the album this recording appears on
1989-01-08
CopyrightID (CopyrightChains transaction hash)
0x629b4122e2a37f546d54069941eafdec7bce2d12dc837b8ab0d292926c50d84c
Copyright registration time
2026-07-30T07:42:53+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T07:51:46Z
Bitcoin block
960223
Canonical record hash
sha256:db898ed84086c817c4314c3018b1e271ab2e22a23fb2e498486cb5faedae9df7

What this proof establishes

This recording was released in 1989, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.