サマータイムブルースが聴こえる

Recording by Takuro Yoshida.

Recording identifiers

ISRC
JPFL08110470
CopyrightID (CopyrightChains transaction hash)
0xbbf98a1ca4ee2c0c3bda2b89c5c226a07bd5d05f66736b38d99d85c933108891
Copyright registration time
2026-06-28T00:37:28+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-16T23:21:10Z
Bitcoin block
956375
Canonical record hash
sha256:7834a9033565c818be01bafaef01a8038709b2ff64bbb9e8f82b0f8c8bdfecd3

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.