Double Barrel - Instrumental

Recording by Marco Polo.

Recording identifiers

ISRC
US92U1909466
CopyrightID (CopyrightChains transaction hash)
0xa2da914d1127b066a132a6a3c5c8e03e017f29a14ec3eec30861fa9f3433489e
Copyright registration time
2026-07-07T14:07:55+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:e715b8c2e97abcb96c23df1f291b6f9a24a5b5c109a7cd6f00b436e310500685

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.