Voices of Spring

Recording by Ferdinand Lang.

Recording identifiers

ISRC
USA371097297
CopyrightID (CopyrightChains transaction hash)
0x5f39e52350d393a6e0e6ddea1d27f4271786414a7b4f54ae1c7d3e00ae7807dc
Copyright registration time
2026-06-06T11:33:56+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:7741b9b48420c07270ee6b6903b7943532e86cf6f6c349636adfbbe079f72f9a

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.