Philadelphia

Recording by John Mark McMillan.

Recording identifiers

ISRC
US25L1001572
CopyrightID (CopyrightChains transaction hash)
0x3e5ae5697cdbcd76917ebad5e7bd227e39b93cf3d8e499c0ec4632c44a9c265f
Copyright registration time
2026-06-23T08:27:18+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:d9eb92b63e97ccc69960df72a4fbd942a3e1c115605f14a7ffa12859cdd78258

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.