Concerto For Alto Saxophone Pt. 1

Recording identifiers

ISRC

QMBZ92163461

CopyrightID (CopyrightChains transaction hash)

0x8859bc55c27836eab3817b13f3ab8f00d1fbb2926a2f0e46d4e4b9373f2e4be2

Copyright registration time

2026-07-30T01:07:33+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T01:32:48Z

Bitcoin block

960185

Canonical record hash

sha256:c49a9a6e0dd78e9b580745dab1ad0bc74cda8d305f206e3803320e2402a70748

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result

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.