はつ恋 - Live at 北海道立総合体育センター 北海きたえーる Apr. 7, 2018
Recording by Masaharu Fukuyama.
Recording identifiers
- ISRC
- JPPO01806830
- CopyrightID (CopyrightChains transaction hash)
- 0x122f7741a93b412e8184ab4bb20bb418e319f2cc23be2fa4591b9263aeafd242
- Copyright registration time
- 2026-06-24T05:39:12+00:00
OpenTimestamps proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T05:09:12Z
- Bitcoin block
- 956312
- Canonical record hash
- sha256:6bad68deec807212f36381d6d69edde106511c789b437585f80c402d61a17e40
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.