Mamma

Recording by Björgvin Þ. Valdimarsson.

Recording identifiers

ISRC
ISZ981200232
CopyrightID (CopyrightChains transaction hash)
0x02f412aab06e94b8c89ae0deccfe062a374f806a86f807c4c657267e8a7082d6
Copyright registration time
2026-07-31T17:52:45+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T18:48:12Z
Bitcoin block
960448
Canonical record hash
sha256:9768037e125646cfc2a1a7083c0156850d8a18edfe36c515622526b3d1fde931

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.