Superman March

Recording by John Williams.

Recording identifiers

ISRC
DEN962136108
CopyrightID (CopyrightChains transaction hash)
0x4d10a64618cd1840e5877340e42d9d248088350d28be2b1924392151019afa48
Copyright registration time
2026-06-08T19:59:47+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:734b9b978bc03e133a33c830321a11fec2d53387b5575ffed84c2695fd9827eb

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.