ISRC SEWDL0777417
Verified recording
SEWDL0777417 is “L'estro armonico, Op. 3 - Concerto No. 9 in D Major for Violin and Strings, RV 230: II. Larghetto” by Bohuslav Matousek,
registered on the CopyrightChains blockchain with CopyrightID
0x6fd79c4b8f491bea2cf298fdfe04381a00de00e0dfc134dbb60e3d03b7d94b22 and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL0777417.
Recording identifiers
- ISRC
- SEWDL0777417
- Title
- L'estro armonico, Op. 3 - Concerto No. 9 in D Major for Violin and Strings, RV 230: II. Larghetto
- Artist
- Bohuslav Matousek
- CopyrightID (CopyrightChains transaction hash)
0x6fd79c4b8f491bea2cf298fdfe04381a00de00e0dfc134dbb60e3d03b7d94b22
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:4d31557fb59c84f1613f3579092b45f26b562ea0dc59e47b8b3c6d075c4d0a7e- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL0777417
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: L'estro armonico, Op. 3 - Concerto No. 9 in D Major for Violin and Strings, RV 230: II. Larghetto · Machine-readable JSON-LD