L'Orfeo, SV 318 / Act II: Sinfonia - "Ecco pur ch'a voi ritorno"

Recording identifiers

ISRC

DEF058630508

Release date of the album this recording appears on

1987-01-01

CopyrightID (CopyrightChains transaction hash)

0x35c2fbf84bc8d4c1f7b161b9a002a20f8b04337e430dc320f80318bc2618125a

Copyright registration time

2026-07-29T15:42:19+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-29T19:35:34Z

Bitcoin block

960138

Canonical record hash

sha256:ff31d3631cba40c9c459dbabad533816245e9e204f9ec16cc3e550efddb300a3

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC DEF058630508

What this proof establishes

This recording was released in 1987, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.