ISRC USTCD1057874
Verified recording
USTCD1057874 is “21 Concepts” by MC Lars,
registered on the CopyrightChains blockchain with CopyrightID
0x66b4d0cf0868b7ecd846329481e98708675d76d5dfafafef478b359fa1c28997 and independently timestamped
in Bitcoin block 956304 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USTCD1057874.
Recording identifiers
- ISRC
- USTCD1057874
- Title
- 21 Concepts
- Artist
- MC Lars
- CopyrightID (CopyrightChains transaction hash)
0x66b4d0cf0868b7ecd846329481e98708675d76d5dfafafef478b359fa1c28997
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:25f8aaf0b816472b1bb9eeae871bfe47202197bbff4df43b22b60d944dedc543- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USTCD1057874
- Bitcoin block existence check
- https://blockstream.info/api/block/956304