Byrgið

Recording by Sigur Rós.

Recording identifiers

ISRC
GBKEE0700031
CopyrightID (CopyrightChains transaction hash)
0x57afdce98eecdb5f2087adbe0c2fcb9f25e7d7729be93aa75d3a30a024b4bee3
Copyright registration time
2026-06-25T18:41:39+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:b5166c63c4c3b48bb35c8304dd45fe1736b57835d7e8e9965ddab235cef4fcfd

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.