Amsterdam

Recording by John Lennon.

Recording identifiers

ISRC
US38W1629102
CopyrightID (CopyrightChains transaction hash)
0x1c334354af8902a21b6554d39facc177f6b66201c527ab638df8290b000825e2
Copyright registration time
2026-06-25T19:24:56+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:8d48403764c87c7cd97d2d6cbb29671946186a799d59e5ea131db29f2ff4414b

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.