Tonight

Recording by Leonard Bernstein.

Recording identifiers

ISRC
GBHMU1300234
CopyrightID (CopyrightChains transaction hash)
0xcc20d0c1193bf28a65d0c7525fbc9e8a100d62ac71a3b1fd959538b7e9d21356
Copyright registration time
2026-06-21T00:12:46+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:428fb1711125bb5e8255aa87b25bdcc9752aaedf275445b9a430aa1179a0a1dc

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.