ISRC USSM11306245
Verified recording
USSM11306245 is “Vielliebchen, Polka française, Op. 1” by Joseph Hellmesberger, Jr.,
registered on the CopyrightChains blockchain with CopyrightID
0x3661cd9bbdb4707f660c931dea3c1bd0c5979385c97b8cce43c0d9fbcdd0764b and independently timestamped
in Bitcoin block 960203 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11306245.
Recording identifiers
- ISRC
- USSM11306245
- Title
- Vielliebchen, Polka française, Op. 1
- Artist
- Joseph Hellmesberger, Jr.
- CopyrightID (CopyrightChains transaction hash)
0x3661cd9bbdb4707f660c931dea3c1bd0c5979385c97b8cce43c0d9fbcdd0764b
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T03:35:13+00:00
- Bitcoin block
- 960203
- Canonical record hash
sha256:5f0b64bbf1bc490ab9bfdf95e1a701155631ecc08a2d57d010d0430bb7b7cd50- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11306245
- Bitcoin block existence check
- https://blockstream.info/api/block/960203
Full record
Track page: Vielliebchen, Polka française, Op. 1 · Machine-readable JSON-LD