ISRC US6R21495275
Verified recording
US6R21495275 is “Quartet in D Minor, Op. 76, No. 2, "Fifths": II. Andante o più tosto allegretto” by Joseph Haydn,
registered on the CopyrightChains blockchain with CopyrightID
0xc73ef55d1643d90bbe5e3cc98e6c253d28cc95ccdf08455de70c3c05a586d631 and independently timestamped
in Bitcoin block 960468 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US6R21495275.
Recording identifiers
- ISRC
- US6R21495275
- Title
- Quartet in D Minor, Op. 76, No. 2, "Fifths": II. Andante o più tosto allegretto
- Artist
- Joseph Haydn
- CopyrightID (CopyrightChains transaction hash)
0xc73ef55d1643d90bbe5e3cc98e6c253d28cc95ccdf08455de70c3c05a586d631
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T21:25:57+00:00
- Bitcoin block
- 960468
- Canonical record hash
sha256:76f43bf995bb9f365182701b1e8f9c18a4a2b8be6888ccd165c5d08489a3b031- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US6R21495275
- Bitcoin block existence check
- https://blockstream.info/api/block/960468
Full record
Track page: Quartet in D Minor, Op. 76, No. 2, "Fifths": II. Andante o più tosto allegretto · Machine-readable JSON-LD