handbook

Recording by Sarah Kang.

Recording identifiers

ISRC
QZNWT2264036
CopyrightID (CopyrightChains transaction hash)
0x2e9d6dd70e204f436859660bdcad70b0e237ed865313557670e152d04d12670a
Copyright registration time
2026-06-06T22:14:38+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T15:41:10Z
Bitcoin block
953528
Canonical record hash
sha256:28aef30ad8bcc44b8d6b6b6853d08d03baf9d2f2f34154cac22792886183f6e7

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.