Long Hard Summer

Recording identifiers

ISRC

NLS761800226

CopyrightID (CopyrightChains transaction hash)

0x63cb252f2d3799d8322022d04d2f5a0029ed7cefc7e97acaa58aa5fe23c88c62

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-29T21:09:47Z

Bitcoin block

960144

Canonical record hash

sha256:d1521b1139576b5929cbd8c727a8116a468874a3320485b6001a5bd4df1db4a0

• 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.