When We Were Children

Recording by David Lang.

Recording identifiers

ISRC
US3Q51710403
CopyrightID (CopyrightChains transaction hash)
0xf0753e0ccac184730df25f6dfaac70bb508e7299a9dbe74c48234ea28f77ea93
Copyright registration time
2026-07-07T00:03:02+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:a6b7a4ba2dd2f5f442e33e06f437a5255c1663c7ab5c97196ed51b2052e7e5b6

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.