ISRC USRC16607796
Verified recording
USRC16607796 is “Whose That” by John Hartford,
registered on the CopyrightChains blockchain with CopyrightID
0x3410f300d5b0a0888a9e57a1f1e88594cdc4732d37851c8fcb669c08a4e56550 and independently timestamped
in Bitcoin block 960220 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRC16607796.
Recording identifiers
- ISRC
- USRC16607796
- Title
- Whose That
- Artist
- John Hartford
- CopyrightID (CopyrightChains transaction hash)
0x3410f300d5b0a0888a9e57a1f1e88594cdc4732d37851c8fcb669c08a4e56550
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T07:28:30+00:00
- Bitcoin block
- 960220
- Canonical record hash
sha256:fe4e0f33bed7a213d2a53694459c161a9c0372c7cf2429de886b5019e601679d- Verification API (seven-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRC16607796
- Bitcoin block existence check
- https://blockstream.info/api/block/960220