Il trovatore, Act II: Vedi, le fosche notturne

Recording identifiers

ISRC

USB8U1700150

Release date of the album this recording appears on

2017-03-03

CopyrightID (CopyrightChains transaction hash)

0x3ac3145030ae681ebbfd00d85d9723c4810088b880cc8d1c98149b4a7c6b6bcf

Copyright registration time

2026-07-31T07:03:28+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T08:26:41Z

Bitcoin block

960368

Canonical record hash

sha256:66bd2622d471d1bd8a0fc74c2b287f2e19a33e4fee11b33efdce20442706fcf6

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC USB8U1700150

What this proof establishes

This recording was released in 2017, 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.