Tota pulchra es

Recording by Pablo Casals.

Recording identifiers

ISRC
USASX0830004
CopyrightID (CopyrightChains transaction hash)
0x75cde6134306123c548508e408a8b7e300638ac684ce0d6add10377e0004b299
Copyright registration time
2026-07-06T20:58:43+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:0206b755f28a0eae3e84fb84192abcc6154376878c02a458606a242d825b4a69

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.