Take the "A" Train

Recording by Duke Ellington.

Recording identifiers

ISRC
USBB19301033
CopyrightID (CopyrightChains transaction hash)
0x4144324f4b335dc5623b94ca51d0a77420fe60d9f412c0c25b43ac727843e6d7
Copyright registration time
2026-06-29T09:05:33+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-06T06:56:49Z
Bitcoin block
956889
Canonical record hash
sha256:2be80edeec1a5569d61864c56dc35fe3e7bfcf347d5d54c7e9fd7731bccea310

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.