La La - Backing Track

Recording by Led Zeppelin.

Recording identifiers

ISRC
USAT21400460
CopyrightID (CopyrightChains transaction hash)
0x0e48e018320e2145e8ade17ce8f3f2d8b763a0e4a067d60352f97b135c3e4af2
Copyright registration time
2026-06-08T09:54:30+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:0940f7fd11fb6eb0718207dd61918d40c8da3bac0474337a7ede534addd970fb

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.