Sandwich

Recording by Michael B. Tretow.

Recording identifiers

ISRC
SEBGA1602605
CopyrightID (CopyrightChains transaction hash)
0x38d59423db4e54957879f8527f75b5acdb0a7dfa458110e1414fe8027cc869ee
Copyright registration time
2026-07-07T13:39:21+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:53:27Z
Bitcoin block
957124
Canonical record hash
sha256:9244f0b90a35210fdb300bdb0df53927c7ef9255a3df60d2a89b32c96de942fb

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.