12 Songs for Guitar: No. 1, Londonderry Air

Recording by Toru Takemitsu.

Recording identifiers

ISRC
ITJ092000093
Release date of the album this recording appears on
2021-02-05
CopyrightID (CopyrightChains transaction hash)
0x39bb1c17f6e83e4f5bff564c796f6759e68b54417325f208a27bbc438f903b08
Copyright registration time
2026-07-31T11:16:12+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T12:24:41Z
Bitcoin block
960397
Canonical record hash
sha256:4b46c22291b74aeb567459e7f64a49b1bb64ddb18558e53a2ffcad6a20ccc89e

What this proof establishes

This recording was released in 2021, 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.