想い出オブリガード

Recording by Yu Sakai.

Recording identifiers

ISRC
JPPO02000010
CopyrightID (CopyrightChains transaction hash)
0x3aae7b354cff3c4eefd132eca4f0b25284a60badd1fdb7364f12b57cf7ddc673
Copyright registration time
2026-07-31T11:21:31+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T12:24:41Z
Bitcoin block
960397
Canonical record hash
sha256:c139ce329af9ca46be995a8f5f168197dc532fbd2f1095d886941c277ef10ffc

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.