ISRC USUPK0521724
Verified recording
USUPK0521724 is “Heartless” by CRUCIFIX,
registered on the CopyrightChains blockchain with CopyrightID
0x6bb28ae8c93290990cd76d3724c8e9cb5b18017942fdc0511076d4f374bd396d and independently timestamped
in Bitcoin block 960240 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUPK0521724.
Recording identifiers
- ISRC
- USUPK0521724
- Title
- Heartless
- Artist
- CRUCIFIX
- CopyrightID (CopyrightChains transaction hash)
0x6bb28ae8c93290990cd76d3724c8e9cb5b18017942fdc0511076d4f374bd396d
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T09:57:33+00:00
- Bitcoin block
- 960240
- Canonical record hash
sha256:52da9b9ec55b6f3641ec0cc6774f7125892c2943b64dbf00f6d1d57c1330fecc- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUPK0521724
- Bitcoin block existence check
- https://blockstream.info/api/block/960240