ISRC USAT22220028
Verified recording
USAT22220028 is “Last Christmas” by Sara Kays,
registered on the CopyrightChains blockchain with CopyrightID
0x84843bc1bcf7f234461b7f76eac7c14592fa515a9e8d449aad2ffcc5c153c9c5 and independently timestamped
in Bitcoin block 956302 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAT22220028.
Recording identifiers
- ISRC
- USAT22220028
- Title
- Last Christmas
- Artist
- Sara Kays
- CopyrightID (CopyrightChains transaction hash)
0x84843bc1bcf7f234461b7f76eac7c14592fa515a9e8d449aad2ffcc5c153c9c5
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:30:09+00:00
- Bitcoin block
- 956302
- Canonical record hash
sha256:483ea9f360044e4d2a7ca95bdd69292d6ead326351b4d1940339697131549bb0- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAT22220028
- Bitcoin block existence check
- https://blockstream.info/api/block/956302