ISRC USUM71912809
Verified recording
USUM71912809 is “Sad” by Alexander 23,
registered on the CopyrightChains blockchain with CopyrightID
0xf9994d955ff4882f877ddeb3801697a7d7180b9a2c255868e9e63ad9fcd8355f 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/USUM71912809.
Recording identifiers
- ISRC
- USUM71912809
- Title
- Sad
- Artist
- Alexander 23
- CopyrightID (CopyrightChains transaction hash)
0xf9994d955ff4882f877ddeb3801697a7d7180b9a2c255868e9e63ad9fcd8355f
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T13:32:09+00:00
- Bitcoin block
- 953520
- Canonical record hash
sha256:3067a40f8f6b9c6a1e1ea1f0cbc6dfd34e00c5a3467053261daaa87d3cd58b32- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM71912809
- Bitcoin block existence check
- https://blockstream.info/api/block/953520