ISRC HKI199269704
Verified recording
HKI199269704 is “Symphony No. 87 in A Major, Hob.I:87: II. Adagio” by Joseph Haydn,
registered on the CopyrightChains blockchain with CopyrightID
0xc9828fedc3af337f14abfe3f5a4a3743e9057530ec7285f4135036ec504cb330 and independently timestamped
in Bitcoin block 960368 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199269704.
Recording identifiers
- ISRC
- HKI199269704
- Title
- Symphony No. 87 in A Major, Hob.I:87: II. Adagio
- Artist
- Joseph Haydn
- CopyrightID (CopyrightChains transaction hash)
0xc9828fedc3af337f14abfe3f5a4a3743e9057530ec7285f4135036ec504cb330
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T08:26:41+00:00
- Bitcoin block
- 960368
- Canonical record hash
sha256:6089ca3b00979ca98f34982db51093109ce52e1bb0ecdb96ec1ad69cc86b873e- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199269704
- Bitcoin block existence check
- https://blockstream.info/api/block/960368
Full record
Track page: Symphony No. 87 in A Major, Hob.I:87: II. Adagio · Machine-readable JSON-LD