Tosca, SC 69: Recondita armonia

Recording by Giacomo Puccini.

Recording identifiers

ISRC
USTE10405411
CopyrightID (CopyrightChains transaction hash)
0x98f4a9936d78d1e825b4f6b2b82916d36b6533dbc43986a975fb2e8f4508d1aa
Copyright registration time
2026-07-30T11:18:54+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T12:06:10Z
Bitcoin block
960254
Canonical record hash
sha256:3e72bd1cce74130e40d14e5136333dc24d8dd9e74874c64660decff7729a84ea

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.