Easy Tempo

Recording by 北里彰久.

Recording identifiers

ISRC
JPJ901904680
CopyrightID (CopyrightChains transaction hash)
0x2aa7d3e996e47ac10231d4286ce66ea02d7d1a9ef11ff0482a0f939b9adbd5ed
Copyright registration time
2026-07-06T06:44:37+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-06T06:56:49Z
Bitcoin block
956889
Canonical record hash
sha256:e954239e3f2cfbd145ebb9d27b3cf36b6ad27d8bdd4104fd7f5519b0445f91f6

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.