Excalibur

Recording identifiers

ISRC

GBSMU9958421

Release date of the album this recording appears on

2021-10-15

CopyrightID (CopyrightChains transaction hash)

0xd2f6e925350330b8bb25c3ff69c812a05f273b1a2599014c715d32818c85a1e9

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T16:07:24Z

Bitcoin block

960429

Canonical record hash

sha256:94dd9350e9b2ac420d40a2b27fc2786f946a8f501f0fab1853b1a6a20d3d5816

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC GBSMU9958421

What this proof establishes

This recording was released in 2021, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.