ISRC USAR10400489
Verified recording
USAR10400489 is “Who Knows” by Avril Lavigne,
registered on the CopyrightChains blockchain with CopyrightID
0x03fa1c97af8c2ca371edf7c4b68076a10a8002467befdd03a2687b8bcdd3de73 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/USAR10400489.
Recording identifiers
- ISRC
- USAR10400489
- Title
- Who Knows
- Artist
- Avril Lavigne
- CopyrightID (CopyrightChains transaction hash)
0x03fa1c97af8c2ca371edf7c4b68076a10a8002467befdd03a2687b8bcdd3de73
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T12:47:07+00:00
- Bitcoin block
- 953513
- Canonical record hash
sha256:16564fcef0f470a80601fb197a40cf15cbae6e6a54dc62aa68cbeab2f5e0bfda- Verification API (seven-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAR10400489
- Bitcoin block existence check
- https://blockstream.info/api/block/953513