I Heard a Rumour

Recording by Brazil XXI.

Recording identifiers

ISRC
ARF412300263
CopyrightID (CopyrightChains transaction hash)
0xadc35d529b67ffed0163508a1be7edad0156c5df85c4bd9b7be5073c2053cda2
Copyright registration time
2026-06-04T09:47:02+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:ec28ecb1b530d3b549dbc88999670f8fd617d33d42d6c8a4b5847c192b7d65e5

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.