回想

Recording by 友川かずき.

Recording identifiers

ISRC
JPKI07811840
CopyrightID (CopyrightChains transaction hash)
0x396da43dca46522e599689dc4b864102a9d37cded0015fa0cf5303d33548f93a
Copyright registration time
2026-08-01T00:01:06+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-08-01T00:15:43Z
Bitcoin block
960487
Canonical record hash
sha256:75123b758883305a4987abf20108880104c39414bbd9dfe3c113f54e82d31ca4

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.