Sprinter - Acoustic Version - - Live

Recording by Kalafina.

Recording identifiers

ISRC
JPU901201899
CopyrightID (CopyrightChains transaction hash)
0x83dee768c7dd52e54a0c39095c023c44b7d4e69a4b5dbe35bcb501abf98d80e5
Copyright registration time
2026-07-07T03:27:30+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:865be5924d97626788e08118861a4e3b2349c62940b7ad4d068b38dc4c45a6bd

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.