Sorrow

Recording by Taisei Iwasaki.

Recording identifiers

ISRC
JPT552200553
CopyrightID (CopyrightChains transaction hash)
0x12c699f2f416eb60124ccd19ab6fe8b0b94da55a1d2deb9f59ef6fce63400227
Copyright registration time
2026-06-10T16:24:15+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:446dbb13de890eb314745eefdac8779c769e667f5d097a0aeaf3f936b3f2795c

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.