ISRC USC4R1806590
Verified recording
USC4R1806590 is “How Long” by The Marcus King Band,
registered on the CopyrightChains blockchain with CopyrightID
0x983a790454f33e2a835cc944c8781c588d06bcf9e5904c3a89fe7e9b2ad6eb51 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/USC4R1806590.
Recording identifiers
- ISRC
- USC4R1806590
- Title
- How Long
- Artist
- The Marcus King Band
- CopyrightID (CopyrightChains transaction hash)
0x983a790454f33e2a835cc944c8781c588d06bcf9e5904c3a89fe7e9b2ad6eb51
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T12:47:07+00:00
- Bitcoin block
- 953513
- Canonical record hash
sha256:edcd6547be933cac145bd4b0db6c9a46c2a1fce10a5a4fea020bc28815ab4da4- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USC4R1806590
- Bitcoin block existence check
- https://blockstream.info/api/block/953513