On Hubbard's Hill

Recording by John Surman.

Recording identifiers

ISRC
DEB338736602
CopyrightID (CopyrightChains transaction hash)
0x7c4cd6e3c3793a9e5d7bfa433738e7313aa93646fa62c03ec5f3b9e95cdc68e0
Copyright registration time
2026-06-25T09:46:30+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:392fbe4ae0e6bff378f35e3b78504a4222f6981d4f0a600ecab22ea5ba585ac4

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.