ISRC DEF055930009
Verified recording
DEF055930009 is “Requiem, Op. 89, B. 165, Pt. 2: IX. Offertorium” by Antonín Dvořák,
registered on the CopyrightChains blockchain with CopyrightID
0xf4423b94c90a3216e87aec28176d0be3377d98d707e8d2bd4fee97b20a93544a and independently timestamped
in Bitcoin block 960481 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF055930009.
Recording identifiers
- ISRC
- DEF055930009
- Title
- Requiem, Op. 89, B. 165, Pt. 2: IX. Offertorium
- Artist
- Antonín Dvořák
- CopyrightID (CopyrightChains transaction hash)
0xf4423b94c90a3216e87aec28176d0be3377d98d707e8d2bd4fee97b20a93544a
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T23:51:35+00:00
- Bitcoin block
- 960481
- Canonical record hash
sha256:efd13f00c83464f4e03da36e9754f57bcd4a3aa36de54c5ced13a1766208f88e- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF055930009
- Bitcoin block existence check
- https://blockstream.info/api/block/960481
Full record
Track page: Requiem, Op. 89, B. 165, Pt. 2: IX. Offertorium · Machine-readable JSON-LD