Jazz Of Two Cities

Recording by Warne Marsh.

Recording identifiers

ISRC
USBN29600519
Release date of the album this recording appears on
1957-01-01
CopyrightID (CopyrightChains transaction hash)
0xf740a0c5679638d51a830f0bb02847b6138336d44284c03e53fe95fb42597c49

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T00:16:15Z
Bitcoin block
960175
Canonical record hash
sha256:52654c67f2d3254a881aa145cbe11d4c2d1477bdff040a742f741f21df169bfe

What this proof establishes

This recording was released in 1957, 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.