Undertow

Recording by John Mackey.

Recording identifiers

ISRC
US7851700004
CopyrightID (CopyrightChains transaction hash)
0x0e7a30ff2a0f49a657eb062dd3649e18d512cd2e690cf87939277e965c772dbd
Copyright registration time
2026-06-09T08:47:56+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T15:41:10Z
Bitcoin block
953528
Canonical record hash
sha256:03b8e6272303b7038a071cc35cd9261da429b4a69bbbdd6b67568613d288bc0f

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.