Lang: I Lost a Sock

Recording by David Lang.

Recording identifiers

ISRC
DEA800104900
CopyrightID (CopyrightChains transaction hash)
0xfee5c2401bf1155f235c93dbf6d8a575cdc1e91788c406c7cf3f0a0e2c5331b3
Copyright registration time
2026-07-07T02:58:28+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:f7f0c1b9fb8572e3c9819482edb8d4459078016a55a8c078543d30919decea8f

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.