Ichiban no Takaramono (from "Angel Beats!") [Piano Arrangement]

Recording identifiers

ISRC

QZGWW2023469

Release date of the album this recording appears on

2020-01-21

CopyrightID (CopyrightChains transaction hash)

0x6be41bbfa38f11b2fcd6e33c906f2e0967adf6a7146f076979faa4d1c7384aa5

Copyright registration time

2026-06-19T00:01:39+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-02T03:30:09Z

Bitcoin block

956302

Canonical record hash

sha256:91d375ea7f43eb2af452f1bbf84d4c78ed95dd426f5af0dabd5f7027280bb5c7

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC QZGWW2023469

What this proof establishes

This recording was released in 2020, 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.