City to City

Recording by Bill Martin.

Recording identifiers

ISRC
GBBGL9300658
CopyrightID (CopyrightChains transaction hash)
0xd196471baaacb136402d5eb65bc1b7b978bef0b0c6e58541bc33c214d6529d59
Copyright registration time
2026-07-07T17:26:44+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:7195bbf78ee9f97a5e00c9f5674c896f48b0eb44037035840e3ec0fa35d89645

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.