北窓をあけて

Recording by ふきのとう.

Recording identifiers

ISRC
JPSR08503490
CopyrightID (CopyrightChains transaction hash)
0x8b8e6793ebdf31a31f0a80fec68c9d2ba89751a81fa038ccbfc3969a09fd3f26
Copyright registration time
2026-07-07T20:01:17+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T08:56:20Z
Bitcoin block
957145
Canonical record hash
sha256:6f7ecb7fd1b5008ff4e77c07122b05aff7c3c9ffdeac4c77fbb598e3b8108cd0

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.