De profundis

Recording by Jan Pieterszoon Sweelinck.

Recording identifiers

ISRC
FR0O70713340
CopyrightID (CopyrightChains transaction hash)
0x2dc73e68ff6435a66c6752101c71d8ed0e03d7a3fb242c2a66c884773347a5c2
Copyright registration time
2026-07-07T19:13:10+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:53:27Z
Bitcoin block
957124
Canonical record hash
sha256:1eb2f7c6afd62f99eeaafb4984d139a3a1e82866d2eb79c74e3bfd31e3488a42

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.