Nagasaki Mon Amour

Recording by Polyphonic Size.

Recording identifiers

ISRC
QMDA61484719
CopyrightID (CopyrightChains transaction hash)
0x66b9f08ca1e5789fdc73a72534ba13ef84f2d10dbffa8cc678977df135730d5a
Copyright registration time
2026-07-07T04:58:24+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:e982860a91fc8975f6129bdd8a0f5da648f541d241173f9ecda017f1f4154e48

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.