ISRC FRZ131700150
Verified recording
FRZ131700150 is “The Seasons, Op. 37a, TH 135: No. 11 in E Major, November. On the Troika” by Pyotr Ilyich Tchaikovsky,
registered on the CopyrightChains blockchain with CopyrightID
0xcaa35e4a2fd8115b091f9bbd031b176c50579ea32533e980f3cb76ccf0fc5053 and independently timestamped
in Bitcoin block 960144 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ131700150.
Recording identifiers
- ISRC
- FRZ131700150
- Title
- The Seasons, Op. 37a, TH 135: No. 11 in E Major, November. On the Troika
- Artist
- Pyotr Ilyich Tchaikovsky
- CopyrightID (CopyrightChains transaction hash)
0xcaa35e4a2fd8115b091f9bbd031b176c50579ea32533e980f3cb76ccf0fc5053
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T21:09:47+00:00
- Bitcoin block
- 960144
- Canonical record hash
sha256:d95c12732158090ee3f4a36ef76e8095d84c15e25919282b1a2c4c3b29504df6- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ131700150
- Bitcoin block existence check
- https://blockstream.info/api/block/960144
Full record
Track page: The Seasons, Op. 37a, TH 135: No. 11 in E Major, November. On the Troika · Machine-readable JSON-LD