ISRC USAT21502628
Verified recording
USAT21502628 is “I Know Him” by Jonathan Groff,
registered on the CopyrightChains blockchain with CopyrightID
0x4debfd204ac06d2f2e7b25cd3e5d504e330b58fba5c14d4659da2e946335c6eb 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/USAT21502628.
Recording identifiers
- ISRC
- USAT21502628
- Title
- I Know Him
- Artist
- Jonathan Groff
- CopyrightID (CopyrightChains transaction hash)
0x4debfd204ac06d2f2e7b25cd3e5d504e330b58fba5c14d4659da2e946335c6eb
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T12:47:07+00:00
- Bitcoin block
- 953513
- Canonical record hash
sha256:7c87ed5602579c2e02634509bf4f6871c5725d9cf99378645f25bf75f8b21ba1- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAT21502628
- Bitcoin block existence check
- https://blockstream.info/api/block/953513