ISRC USSR21600258
Verified recording
USSR21600258 is “Hard Time” by Simon Viklund,
registered on the CopyrightChains blockchain with CopyrightID
0xbdd4d53b77deceab472aaa5afdf6fdc7c2c6b608df8fb284b1827872ef249c5f and independently timestamped
in Bitcoin block 953520 on 2026-06-13.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSR21600258.
Recording identifiers
- ISRC
- USSR21600258
- Title
- Hard Time
- Artist
- Simon Viklund
- CopyrightID (CopyrightChains transaction hash)
0xbdd4d53b77deceab472aaa5afdf6fdc7c2c6b608df8fb284b1827872ef249c5f
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T13:32:09+00:00
- Bitcoin block
- 953520
- Canonical record hash
sha256:1716f41ddad69d70d8551d258e9808880570894fe8b206915cae4a8b5a24f02e- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSR21600258
- Bitcoin block existence check
- https://blockstream.info/api/block/953520