ISRC USV291452493
Verified recording
USV291452493 is “Written on the Sky” by Martin Jacoby,
registered on the CopyrightChains blockchain with CopyrightID
0xd4cd8312d526d38372ddcb89632e2d66ccc91d6dd75380c7db75c629dc7c98dd and independently timestamped
in Bitcoin block 953515 on 2026-06-13.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USV291452493.
Recording identifiers
- ISRC
- USV291452493
- Title
- Written on the Sky
- Artist
- Martin Jacoby
- CopyrightID (CopyrightChains transaction hash)
0xd4cd8312d526d38372ddcb89632e2d66ccc91d6dd75380c7db75c629dc7c98dd
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T12:53:06+00:00
- Bitcoin block
- 953515
- Canonical record hash
sha256:4f06b01d7014affc04514f218e430d52a303852fc9ab6184537d2f81e7b55859- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USV291452493
- Bitcoin block existence check
- https://blockstream.info/api/block/953515