ISRC USSF12024009
Verified recording
USSF12024009 is “If I Had a Hammer” by Kronos Quartet,
registered on the CopyrightChains blockchain with CopyrightID
0x939f1fe19e1b7be07f2d03aa92272d71b7fd234b5f206bf2907e0b5e2d580fd6 and independently timestamped
in Bitcoin block 960209 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSF12024009.
Recording identifiers
- ISRC
- USSF12024009
- Title
- If I Had a Hammer
- Artist
- Kronos Quartet
- CopyrightID (CopyrightChains transaction hash)
0x939f1fe19e1b7be07f2d03aa92272d71b7fd234b5f206bf2907e0b5e2d580fd6
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T05:15:54+00:00
- Bitcoin block
- 960209
- Canonical record hash
sha256:47e6e6f23cc5f1c2fdb68bb03b19d493fe0dca05674d498ea68b31f6536a78fa- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSF12024009
- Bitcoin block existence check
- https://blockstream.info/api/block/960209