ISRC USRDG0223768
Verified recording
USRDG0223768 is “Serenata No. 13, "Eine Kleine Nachtmusik" : II. Romance” by Eric Hammerstein,
registered on the CopyrightChains blockchain with CopyrightID
0x2bcd399e48d5b9a3fd74d38d7856089070ef8412c89ecd2277bd7c5cc38b32a9 and independently timestamped
in Bitcoin block 960106 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRDG0223768.
Recording identifiers
- ISRC
- USRDG0223768
- Title
- Serenata No. 13, "Eine Kleine Nachtmusik" : II. Romance
- Artist
- Eric Hammerstein
- CopyrightID (CopyrightChains transaction hash)
0x2bcd399e48d5b9a3fd74d38d7856089070ef8412c89ecd2277bd7c5cc38b32a9
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T12:41:21+00:00
- Bitcoin block
- 960106
- Canonical record hash
sha256:c67bbe39ab523a7e94845a1904bc1f73d075040af4f23c64728101044f5e3893- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRDG0223768
- Bitcoin block existence check
- https://blockstream.info/api/block/960106
Full record
Track page: Serenata No. 13, "Eine Kleine Nachtmusik" : II. Romance · Machine-readable JSON-LD