Mayday

Recording by Halvdan Sivertsen.

Recording identifiers

ISRC
NOBBZ0101040
CopyrightID (CopyrightChains transaction hash)
0xdb45cfd5fdb797a70aeb299f68d674f5cde155d39c0d330b84fdfb287d1592c0
Copyright registration time
2026-07-29T10:29:46+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-29T11:07:37Z
Bitcoin block
960095
Canonical record hash
sha256:cb19d0bc97384417d378042d9c9565a02080cb1388b48d9431dd21ead569d333

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.