ISRC HKI199306505
Verified recording
HKI199306505 is “Cello Concerto No. 1 in C Major, Hob.VIIb:1: II. Adagio” by Joseph Haydn,
registered on the CopyrightChains blockchain with CopyrightID
0x4d8df6363c69ab38bd783d3621c1a08a5b9b9d6f0a52dd3f916e59ebc96f8436 and independently timestamped
in Bitcoin block 960459 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199306505.
Recording identifiers
- ISRC
- HKI199306505
- Title
- Cello Concerto No. 1 in C Major, Hob.VIIb:1: II. Adagio
- Artist
- Joseph Haydn
- CopyrightID (CopyrightChains transaction hash)
0x4d8df6363c69ab38bd783d3621c1a08a5b9b9d6f0a52dd3f916e59ebc96f8436
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T20:22:46+00:00
- Bitcoin block
- 960459
- Canonical record hash
sha256:89b9b56d7509b956cab810426a4a66d23b08bf015c022d9b5c737cff42e71a4d- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199306505
- Bitcoin block existence check
- https://blockstream.info/api/block/960459
Full record
Track page: Cello Concerto No. 1 in C Major, Hob.VIIb:1: II. Adagio · Machine-readable JSON-LD