Josefína

Recording by Petr Spálený.

Recording identifiers

ISRC
CZA167500485
CopyrightID (CopyrightChains transaction hash)
0x674ec8f4cf9fd7f725b0d5e5e21846265ffd60964d9ae18cb1a9fdc933b427b6
Copyright registration time
2026-07-07T07:08:43+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:708e8399b63418445445f081dc5cd276f087cd5a4fe1d5579a6051bdf6ccc85b

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.