Yesterday

Recording by Judy Collins.

Recording identifiers

ISRC
USV351466909
CopyrightID (CopyrightChains transaction hash)
0xebe0a55dfd0f94bebef02d5a205395315e76dd00c07e75f60b70c82024a8f5dd
Copyright registration time
2026-07-31T14:12:23+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T15:20:15Z
Bitcoin block
960418
Canonical record hash
sha256:752ac4407b47388df7e2c17447fd35846707a1cc7607becb2b5c37f556204b0b

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.