ISRC USUM71907487
Verified recording
USUM71907487 is “Nightmare” by Halsey,
registered on the CopyrightChains blockchain with CopyrightID
0xb6b6a5dac1be6288cb5fb4a78648fad9009b22b91d360687246a7c883ed4eaa8 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/USUM71907487.
Recording identifiers
- ISRC
- USUM71907487
- Title
- Nightmare
- Artist
- Halsey
- CopyrightID (CopyrightChains transaction hash)
0xb6b6a5dac1be6288cb5fb4a78648fad9009b22b91d360687246a7c883ed4eaa8
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T12:47:07+00:00
- Bitcoin block
- 953513
- Canonical record hash
sha256:d0f34faf2174885430648d8bfafeb4c3bc2e8e9a04c6604e3eb846f3d47175a6- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM71907487
- Bitcoin block existence check
- https://blockstream.info/api/block/953513