でももう花はいらない

Recording by Off Course.

Recording identifiers

ISRC
JPTO08300080
CopyrightID (CopyrightChains transaction hash)
0x90986e02bb5e4bad1066f7a93bbc9243cb77f6f8abe55bf6f1db4c15aca9c2a7
Copyright registration time
2026-06-11T21:28:51+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T17:25:41Z
Bitcoin block
953536
Canonical record hash
sha256:067b57a4c05b065ee7a746732a80b25125c67bf063a42aae8a6d08e727d73c39

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.