Tosca, SC 69: Recondita armonia

Recording by Giacomo Puccini.

Recording identifiers

ISRC
USTE10405411
CopyrightID (CopyrightChains transaction hash)
0x98f4a9936d78d1e825b4f6b2b82916d36b6533dbc43986a975fb2e8f4508d1aa

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-08-01T04:52:22Z
Bitcoin block
960513
Canonical record hash
sha256:85bb5376cf29152e0be0625ce69efc9ff46dff3f54b646a9e8dd978a2e1f42f9

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.