Take the "A" Train

Recording by Johnny Hartman.

Recording identifiers

ISRC
US1A19816505
CopyrightID (CopyrightChains transaction hash)
0x51ac70975ab4e17d49938e1e21271983e6b6f3e5a05b835d91f8bcdaa371360e
Copyright registration time
2026-07-08T00:57:00+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:4703652e3564ba4e0048974dae0b744e67643ae0d69c835fabbae7e3ac50c36d

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.