Yesterday

Recording by Saxophone Rufus.

Recording identifiers

ISRC
DELJ82046595
CopyrightID (CopyrightChains transaction hash)
0x832ceeadc9d424ae5c0bbad3d03b65140fdb5d5c62b010ff376cd1c1b4975d3a
Copyright registration time
2026-06-04T15:48:12+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:e43639d46590dff7290f579b1fca4ad9c00d37b1f4609a4d8b9e96912d09f46d

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.