Sleepsong

Recording identifiers

ISRC

NOAMM0400421

Release date of the album this recording appears on

2018-04-22

CopyrightID (CopyrightChains transaction hash)

0x319bad122b024bf539845b51804d0bdaf767c69a13ae1126b3f034e79b20577d

Copyright registration time

2026-06-04T09:52:53+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-06-13T12:47:07Z

Bitcoin block

953513

Canonical record hash

sha256:f57fbd3b39475e533d408759a3fe0972256f6b6a377e1052ef64154d08822ce3

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC NOAMM0400421

What this proof establishes

This recording was released in 2018, 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.