ISRC DEF059303714
Verified recording
DEF059303714 is “String Quartet in F minor, HIII No. 35, Op. 20 No. 5: 4. Fuga a 2 soggetti” by Joseph Haydn,
registered on the CopyrightChains blockchain with CopyrightID
0x7dbbd58847cbc45f8a5c72ece43ccbb43dec87cb6e191cdc560de0b087d89848 and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059303714.
Recording identifiers
- ISRC
- DEF059303714
- Title
- String Quartet in F minor, HIII No. 35, Op. 20 No. 5: 4. Fuga a 2 soggetti
- Artist
- Joseph Haydn
- CopyrightID (CopyrightChains transaction hash)
0x7dbbd58847cbc45f8a5c72ece43ccbb43dec87cb6e191cdc560de0b087d89848
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:e40e18a7874a22bc1735cc2b81e4d5519b28c471b014edd693c72d6694a459c9- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059303714
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: String Quartet in F minor, HIII No. 35, Op. 20 No. 5: 4. Fuga a 2 soggetti · Machine-readable JSON-LD