ISRC USUM71708638
Verified recording
USUM71708638 is “Portrait” by Oliver,
registered on the CopyrightChains blockchain with CopyrightID
0x6ca2c93d7544a30cf1f4d74c607696ca10cbdf7e59b3fd9df37d6c74f6b042c6 and independently timestamped
in Bitcoin block 956302 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM71708638.
Recording identifiers
- ISRC
- USUM71708638
- Title
- Portrait
- Artist
- Oliver
- CopyrightID (CopyrightChains transaction hash)
0x6ca2c93d7544a30cf1f4d74c607696ca10cbdf7e59b3fd9df37d6c74f6b042c6
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:30:09+00:00
- Bitcoin block
- 956302
- Canonical record hash
sha256:8ab0f6575961b45ebeb177f71977adae780acf3f2f65662d0e43ab23d1cb2932- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM71708638
- Bitcoin block existence check
- https://blockstream.info/api/block/956302