St. Tristan's Sword - Rough Mix

Recording by Led Zeppelin.

Recording identifiers

ISRC
USAT21500101
CopyrightID (CopyrightChains transaction hash)
0xcf3f9c8597b67b4cfa77aa244523563848281da2b1ee1ea78ff31f86dbfd5def
Copyright registration time
2026-06-08T00:59:31+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:da173a917959950f05d2212a97ee11d566ca96022ccacce77d3b2cc90ec97d0b

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.