ISRC DEF056904235
Verified recording
DEF056904235 is “Serenade For Strings In E Major, Op. 22, B.52: 4. Larghetto” by Antonín Dvořák,
registered on the CopyrightChains blockchain with CopyrightID
0x77d3037a8995bc634c6a6174a2d6f1bcd5de1eb6405956b4cd7f16feb503c6ce and independently timestamped
in Bitcoin block 960397 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056904235.
Recording identifiers
- ISRC
- DEF056904235
- Title
- Serenade For Strings In E Major, Op. 22, B.52: 4. Larghetto
- Artist
- Antonín Dvořák
- CopyrightID (CopyrightChains transaction hash)
0x77d3037a8995bc634c6a6174a2d6f1bcd5de1eb6405956b4cd7f16feb503c6ce
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T12:24:41+00:00
- Bitcoin block
- 960397
- Canonical record hash
sha256:d934d2d92053fd62bbfe912ea56c03d75bb8372adbf8e0a03ee3260d3b213b12- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056904235
- Bitcoin block existence check
- https://blockstream.info/api/block/960397
Full record
Track page: Serenade For Strings In E Major, Op. 22, B.52: 4. Larghetto · Machine-readable JSON-LD