The Immigrant Song - Alternate Mix

Recording by Led Zeppelin.

Recording identifiers

ISRC
USAT21400468
CopyrightID (CopyrightChains transaction hash)
0x09794560c9d6e9a4f817b45cdcf0a8c4f7a216f1ffe0ac98b64c977b694405b3
Copyright registration time
2026-06-04T11:02:40+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T15:41:10Z
Bitcoin block
953528
Canonical record hash
sha256:fe5aae3b0b9907307640f64726c9750fbc3fc08f2076abedb6eaa5266585a5f1

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.