Blue Letter

Recording by JKC.

Recording identifiers

ISRC
KRMIM2003493
CopyrightID (CopyrightChains transaction hash)
0x15d5eb8dece7c981d8f73abe59bbb922b119ec1c9003a67b30df910a1d5e9073
Copyright registration time
2026-07-30T10:49:23+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T11:13:28Z
Bitcoin block
960250
Canonical record hash
sha256:47dd392333574eb55a38aef0d8b1ce265f1d2eba79ba44201731e690d5ac2c61

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.