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Recording by Marco Polo.

Recording identifiers

ISRC
US92U1307007
CopyrightID (CopyrightChains transaction hash)
0xaa163d47eb71c7d9f995e61bc2ad39a28b087acd33da172cff5922c8555fcd8d
Copyright registration time
2026-07-22T13:08:36+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-22T13:34:27Z
Bitcoin block
959134
Canonical record hash
sha256:4886dfbe72dde1ca36f402857c344e4f08fb005def7de1ded01141e2b3920121

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.