ISRC USUR40307504
Verified recording
USUR40307504 is “Polyphonix” by Greyboy,
registered on the CopyrightChains blockchain with CopyrightID
0x7e8f4cf6f5f11a6fe643772ac3c82f04a4ce6e06f46fe645dad9ae33391d518b and independently timestamped
in Bitcoin block 956302 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUR40307504.
Recording identifiers
- ISRC
- USUR40307504
- Title
- Polyphonix
- Artist
- Greyboy
- CopyrightID (CopyrightChains transaction hash)
0x7e8f4cf6f5f11a6fe643772ac3c82f04a4ce6e06f46fe645dad9ae33391d518b
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:30:09+00:00
- Bitcoin block
- 956302
- Canonical record hash
sha256:609d55041bbf1760e47b3644dd8bb522f658069b77703fcfad0b9a24df2464f9- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUR40307504
- Bitcoin block existence check
- https://blockstream.info/api/block/956302