Sonar

Recording identifiers

ISRC

NL1LE2000783

Release date of the album this recording appears on

2020-12-20

CopyrightID (CopyrightChains transaction hash)

0xaa2f33c532be89078ae8d031adb41a14f52ad1261248eefba7047a13aed82dc4

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T20:45:02Z

Bitcoin block

960311

Canonical record hash

sha256:b5b29547ad0aefd035cbb3028a0edde3bf04d78b0fc9e091a5e3e50a51052650

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC NL1LE2000783

What this proof establishes

This recording was released in 2020, 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.