逢坂裕：ソプラノサクソフォンとピアノのためのソナタ エクスタシス - 世界初録音
Recording by 逢坂 裕.
Recording identifiers
- ISRC
- JPCO01928840
- CopyrightID (CopyrightChains transaction hash)
- 0x61576f6463ab79a6049b4e49e58a041b3899ff7b4643ff29c374f56f43e116cc
- Copyright registration time
- 2026-07-29T18:50:21+00:00
OpenTimestamps proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T21:13:37Z
- Bitcoin block
- 960145
- Canonical record hash
- sha256:a2c337f5238caa50b5c8a17f6e08815fd2b24a3d15a13971a47f9085049c5ab9
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.