ISRC DEE212142603
Verified recording
DEE212142603 is “String Quartet in G Major, Op. 9/3, Hob. III:21: III. Largo” by Joseph Haydn,
registered on the CopyrightChains blockchain with CopyrightID
0xa5cb0cde1fb06e5e89b40b07987cd4037cf1f9ea8205852de9dce3146a9d8b16 and independently timestamped
in Bitcoin block 960229 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE212142603.
Recording identifiers
- ISRC
- DEE212142603
- Title
- String Quartet in G Major, Op. 9/3, Hob. III:21: III. Largo
- Artist
- Joseph Haydn
- CopyrightID (CopyrightChains transaction hash)
0xa5cb0cde1fb06e5e89b40b07987cd4037cf1f9ea8205852de9dce3146a9d8b16
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T08:30:10+00:00
- Bitcoin block
- 960229
- Canonical record hash
sha256:0925fbe2e82c98b60b984b723c0a72b7fc56efabe9ddb89669707faf3e017388- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE212142603
- Bitcoin block existence check
- https://blockstream.info/api/block/960229
Full record
Track page: String Quartet in G Major, Op. 9/3, Hob. III:21: III. Largo · Machine-readable JSON-LD