ISRC US6R21489394
Verified recording
US6R21489394 is “Concertino for Contrabass and Orchestra: III. Presto” by Theodore Antoniou,
registered on the CopyrightChains blockchain with CopyrightID
0x173827bc8e1b3909f305c387e8ccf9860f00d9b087ea39f6f74008b959deab47 and independently timestamped
in Bitcoin block 960455 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US6R21489394.
Recording identifiers
- ISRC
- US6R21489394
- Title
- Concertino for Contrabass and Orchestra: III. Presto
- Artist
- Theodore Antoniou
- CopyrightID (CopyrightChains transaction hash)
0x173827bc8e1b3909f305c387e8ccf9860f00d9b087ea39f6f74008b959deab47
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T19:53:13+00:00
- Bitcoin block
- 960455
- Canonical record hash
sha256:725c465d9b87beb1ebf56f562258082f9bcba89714823d9303d900e4af1cb134- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US6R21489394
- Bitcoin block existence check
- https://blockstream.info/api/block/960455
Full record
Track page: Concertino for Contrabass and Orchestra: III. Presto · Machine-readable JSON-LD