哀愁

Recording by Takatsugu Muramatsu.

Recording identifiers

ISRC
JPJ822200287
CopyrightID (CopyrightChains transaction hash)
0x75760a5b5042a66bae10206a7f0d327b876379da35057cb62d77662a13366e2b
Copyright registration time
2026-07-07T20:15:09+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:49ec2080a0674542b6f885feac54f7711d3bd744e1f58ce14f331f8a1e37869b

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.