ISRC DEF059331212
Verified recording
DEF059331212 is “12 Notations for Piano: XII. Lent. Puissant et âpre” by Pierre Boulez,
registered on the CopyrightChains blockchain with CopyrightID
0x476dc962a4a313c8bf2e205718f0bad45188bf8c83c225b4fbd6678a50d9d1ec and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059331212.
Recording identifiers
- ISRC
- DEF059331212
- Title
- 12 Notations for Piano: XII. Lent. Puissant et âpre
- Artist
- Pierre Boulez
- CopyrightID (CopyrightChains transaction hash)
0x476dc962a4a313c8bf2e205718f0bad45188bf8c83c225b4fbd6678a50d9d1ec
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:2198e3e389ccbde96898ba639599a89408fdc5827f477dc280420af4d6065659- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059331212
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: 12 Notations for Piano: XII. Lent. Puissant et âpre · Machine-readable JSON-LD