Tonight

Recording by Leonard Bernstein.

Recording identifiers

ISRC
GBHMU1300234
Release date of the album this recording appears on
2014-11-24
CopyrightID (CopyrightChains transaction hash)
0xcc20d0c1193bf28a65d0c7525fbc9e8a100d62ac71a3b1fd959538b7e9d21356
Copyright registration time
2026-06-21T00:12:46+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:096c39e8fbb219c2c3ab00411a8444f3085219c819986f0c0a814809e21b271f

What this proof establishes

This recording was released in 2014, 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.