Cancelling Out

Recording by John Mayall.

Recording identifiers

ISRC
GBF076721380
CopyrightID (CopyrightChains transaction hash)
0xebc7f7645f3035556751779d0e031dcd9f0e3c45a3febb4516537fd0bfc34a40
Copyright registration time
2026-07-06T08:35:01+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-07T14:41:13Z
Bitcoin block
957050
Canonical record hash
sha256:c9a24fbf08b702c48661e087b7cad45771454e599724b1e91baeecc2c1a8b1c8

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.