ISRC DEF059331203
Verified recording
DEF059331203 is “12 Notations for Piano: III. Assez lent” by Pierre Boulez,
registered on the CopyrightChains blockchain with CopyrightID
0x50067aeca75e7f1e767c519dffef8b27786b9dd87ad7e943013a8f1886461504 and independently timestamped
in Bitcoin block 960170 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059331203.
Recording identifiers
- ISRC
- DEF059331203
- Title
- 12 Notations for Piano: III. Assez lent
- Artist
- Pierre Boulez
- CopyrightID (CopyrightChains transaction hash)
0x50067aeca75e7f1e767c519dffef8b27786b9dd87ad7e943013a8f1886461504
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T23:52:38+00:00
- Bitcoin block
- 960170
- Canonical record hash
sha256:c7f9f94bf83915136262f7270c9466d019c93190e4220a90a51a57b538f13ee3- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059331203
- Bitcoin block existence check
- https://blockstream.info/api/block/960170
Full record
Track page: 12 Notations for Piano: III. Assez lent · Machine-readable JSON-LD