Yesterday

Recording by Zakwe.

Recording identifiers

ISRC
ZAO011900226
CopyrightID (CopyrightChains transaction hash)
0x6515fece61ec2061cd15d3d50cd0de981212e30da5ec82bd51dec06c135a6262
Copyright registration time
2026-06-11T11:32:36+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:f6f316f64ebab4335e44b253855a4a7af279c16d194272786645f4a36c4786fd

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.