ISRC USUM71907435
Verified recording
USUM71907435 is “KING KING” by Duckwrth,
registered on the CopyrightChains blockchain with CopyrightID
0xcefe0d7cd5e9dce41c8f280c54716a0c82a4344e2bdfa8506e014fe5cd622e9b and independently timestamped
in Bitcoin block 953520 on 2026-06-13.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM71907435.
Recording identifiers
- ISRC
- USUM71907435
- Title
- KING KING
- Artist
- Duckwrth
- CopyrightID (CopyrightChains transaction hash)
0xcefe0d7cd5e9dce41c8f280c54716a0c82a4344e2bdfa8506e014fe5cd622e9b
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T13:32:09+00:00
- Bitcoin block
- 953520
- Canonical record hash
sha256:35a47c510dba21c43f19977ae57cf2e82211217b1c3458aec5c4d5763fa73756- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM71907435
- Bitcoin block existence check
- https://blockstream.info/api/block/953520