Blue Summer Blue

Recording by Jan Smit.

Recording identifiers

ISRC
NLA620100023
CopyrightID (CopyrightChains transaction hash)
0xb8ad5a5833e5779b4c3461395e54eb996af707c2a4fde11be524385401c1c5fc
Copyright registration time
2026-07-06T05:47:16+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-06T06:56:49Z
Bitcoin block
956889
Canonical record hash
sha256:5cf46ee9d9fdb58ec2e0e42c5f2e35aad2abe735c76c4ba54ad15608dc2f27f1

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.