Sleep Walking

Recording identifiers

ISRC

NLCK41054681

Release date of the album this recording appears on

2019-04-22

CopyrightID (CopyrightChains transaction hash)

0x4d1c19313c82351a9047f78f888146c99a1c3fa5412d74216ad2e369f45689e7

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-29T12:41:21Z

Bitcoin block

960106

Canonical record hash

sha256:e88c055ce36f563cd2f22ef0b7784ad484dc4e42004015f30983c4b54facb2a8

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC NLCK41054681

What this proof establishes

This recording was released in 2019, 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.