ISRC HKI191904920
Verified recording
HKI191904920 is “13 Préludes, Op. 32: No. 9 in A Major. Allegro moderato” by Sergei Rachmaninoff,
registered on the CopyrightChains blockchain with CopyrightID
0x64fea72e7d0554e5086674bd41fde3fe9bdf6c4c942897442195ba72c9653ec3 and independently timestamped
in Bitcoin block 957061 on 2026-07-07.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191904920.
Recording identifiers
- ISRC
- HKI191904920
- Title
- 13 Préludes, Op. 32: No. 9 in A Major. Allegro moderato
- Artist
- Sergei Rachmaninoff
- CopyrightID (CopyrightChains transaction hash)
0x64fea72e7d0554e5086674bd41fde3fe9bdf6c4c942897442195ba72c9653ec3
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-07T16:07:00+00:00
- Bitcoin block
- 957061
- Canonical record hash
sha256:d716823c404f9603a98094e6980ab76e9a6b6f9cbad3c43710c73cc9ffdefc07- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191904920
- Bitcoin block existence check
- https://blockstream.info/api/block/957061
Full record
Track page: 13 Préludes, Op. 32: No. 9 in A Major. Allegro moderato · Machine-readable JSON-LD