ISRC US83Z1921592
Verified recording
US83Z1921592 is “Hard Curve” by Sobek,
registered on the CopyrightChains blockchain with CopyrightID
0xe81f079d2a054bc87787c9d8a9a28686939dc77fd958fd36b55f8a056d8a5cf6 and independently timestamped
in Bitcoin block 960285 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US83Z1921592.
Recording identifiers
- ISRC
- US83Z1921592
- Title
- Hard Curve
- Artist
- Sobek
- CopyrightID (CopyrightChains transaction hash)
0xe81f079d2a054bc87787c9d8a9a28686939dc77fd958fd36b55f8a056d8a5cf6
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T17:26:40+00:00
- Bitcoin block
- 960285
- Canonical record hash
sha256:0ec0c946ade325020b4bfbc3dc9283764abd72d66abc9b6028250749f6000698- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US83Z1921592
- Bitcoin block existence check
- https://blockstream.info/api/block/960285