Playground

Recording by Martin Iveson.

Recording identifiers

ISRC
GBZVM1800020
CopyrightID (CopyrightChains transaction hash)
0x5ea938547723e1bb7a4d6e079168bbc25e8de7a8127d53d07eb59fbbbe7f97f4
Copyright registration time
2026-07-31T15:34:54+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T15:59:18Z
Bitcoin block
960427
Canonical record hash
sha256:9554a621d24395accafd211939b94359b7ea5dce8f887b39fb1ad21a642ebe23

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.