ISRC US2TL0929502
Verified recording
US2TL0929502 is “The 4 Seasons: Violin Concerto in E major, Op. 8, No. 1, RV 269, "La primavera" (Spring): II. Largo e pianissimo sempre” by Karoly Botvay,
registered on the CopyrightChains blockchain with CopyrightID
0x9e5bfc376e070eec6a676ed7e0cba2f685d93b5bbe36d7adc8644f16ce31e0b3 and independently timestamped
in Bitcoin block 953513 on 2026-06-13.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2TL0929502.
Recording identifiers
- ISRC
- US2TL0929502
- Title
- The 4 Seasons: Violin Concerto in E major, Op. 8, No. 1, RV 269, "La primavera" (Spring): II. Largo e pianissimo sempre
- Artist
- Karoly Botvay
- CopyrightID (CopyrightChains transaction hash)
0x9e5bfc376e070eec6a676ed7e0cba2f685d93b5bbe36d7adc8644f16ce31e0b3
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T12:47:07+00:00
- Bitcoin block
- 953513
- Canonical record hash
sha256:433bb826a8322c7513302a196f2d8c66616f5a256dc44dccde88f4e7c8067bcc- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2TL0929502
- Bitcoin block existence check
- https://blockstream.info/api/block/953513
Full record
Track page: The 4 Seasons: Violin Concerto in E major, Op. 8, No. 1, RV 269, "La primavera" (Spring): II. Largo e pianissimo sempre · Machine-readable JSON-LD