The Lame, The Halt And The Blind - Demo

Recording by Stephen Sondheim.

Recording identifiers

ISRC
USSM10213312
Release date of the album this recording appears on
1963
CopyrightID (CopyrightChains transaction hash)
0x17418154b1ffd56823b8ba790ed417c69243dc27948dffdd489d78ec18fb2929
Copyright registration time
2026-07-31T10:11:42+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T10:20:10Z
Bitcoin block
960389
Canonical record hash
sha256:e4e46643762456690c9115de63a2b39b65cdfe1f288b14db5375c2b8cf936054

What this proof establishes

This recording was released in 1963, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.