Class Act

Recording by Old City.

Recording identifiers

ISRC
USA2B2402083
CopyrightID (CopyrightChains transaction hash)
0x47558e342cf401a7aba8da08ddc52f7e151f1bc3ad91dc30f50a99bfd8ff1581
Copyright registration time
2026-07-30T04:53:37+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T05:15:54Z
Bitcoin block
960209
Canonical record hash
sha256:4f35f157d5f0e9217e6d53fb6fda97d09694ce895afa3869623d3f195818caf6

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.