ISRC DEF055930004
Verified recording
DEF055930004 is “Requiem, Op. 89, B. 165, Pt. 1: IV. Tuba mirum” by Antonín Dvořák,
registered on the CopyrightChains blockchain with CopyrightID
0xfe285d2c50ded3bfcf00758679eac3c4882df2db4940df5691aa4956395302ac and independently timestamped
in Bitcoin block 960241 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF055930004.
Recording identifiers
- ISRC
- DEF055930004
- Title
- Requiem, Op. 89, B. 165, Pt. 1: IV. Tuba mirum
- Artist
- Antonín Dvořák
- CopyrightID (CopyrightChains transaction hash)
0xfe285d2c50ded3bfcf00758679eac3c4882df2db4940df5691aa4956395302ac
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T09:58:01+00:00
- Bitcoin block
- 960241
- Canonical record hash
sha256:029c07f8c66b75833b5100c55ec1d7c6ce99fa6d6c3574640c63419a4f162e34- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF055930004
- Bitcoin block existence check
- https://blockstream.info/api/block/960241
Full record
Track page: Requiem, Op. 89, B. 165, Pt. 1: IV. Tuba mirum · Machine-readable JSON-LD