ISRC USUG12202412
Verified recording
USUG12202412 is “Hard Working Man” by Marcus King,
registered on the CopyrightChains blockchain with CopyrightID
0x9c03a7f1101e314b8f6422d694345b3b3e54ee5f624795a3b8fcc0f11724a4c5 and independently timestamped
in Bitcoin block 953513 on 2026-06-13.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUG12202412.
Recording identifiers
- ISRC
- USUG12202412
- Title
- Hard Working Man
- Artist
- Marcus King
- CopyrightID (CopyrightChains transaction hash)
0x9c03a7f1101e314b8f6422d694345b3b3e54ee5f624795a3b8fcc0f11724a4c5
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T12:47:07+00:00
- Bitcoin block
- 953513
- Canonical record hash
sha256:2af930c54219c351d646e0f95f1c8cef8db35c322bc9731f09762db158d65f3e- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUG12202412
- Bitcoin block existence check
- https://blockstream.info/api/block/953513