Lost April - Digitally Restored

Recording identifiers

ISRC

NLL4P2400460

CopyrightID (CopyrightChains transaction hash)

0x9b59bdca23ec8a7d02a67ecc53707c2be22e7f6cd38627bf94b56c65b42b496a

Copyright registration time

2026-07-06T09:11:39+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-13T07:53:33Z

Bitcoin block

957819

Canonical record hash

sha256:fcddc595b5bb5270bc82ae9206e3fe732df0e010fa1da1e0a4df203c2182f79e

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result

What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. 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.