Groon (single B-side)

Recording by King Crimson.

Recording identifiers

ISRC
GBCTX1500273
CopyrightID (CopyrightChains transaction hash)
0x1cf57daac1a64e1a1808afc601aec516a3b2da47c730572356f8d7d9a12b81cb
Copyright registration time
2026-06-09T11:32:34+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:14692328d1cf55b1429492f24369c28e1c9681a899bd7758c88df6b6eec4857b

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.