Dutch Friends

Recording identifiers

ISRC

NLL561103025

CopyrightID (CopyrightChains transaction hash)

0x51dc0da0f2cc22278643b0444ba54ef575346d68d990c5cc422c7f08b26bfe39

Copyright registration time

2026-06-19T20:02:27+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-02T03:30:09Z

Bitcoin block

956302

Canonical record hash

sha256:8c3816dd02468ab1257b374bf6a0e58aa917e3b492d30f2c538be84071f746d9

• 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.