ISRC NLE421500508
Verified recording
NLE421500508 is “Swan Lake, Op. 20, TH 12: No. 23, Mazurka” by Pyotr Ilyich Tchaikovsky,
registered on the CopyrightChains blockchain with CopyrightID
0x3cc4ecbf386dc64ac46ea24b4fa72c09787491e49c9734ab1ea7452ef81f1def 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/NLE421500508.
Recording identifiers
- ISRC
- NLE421500508
- Title
- Swan Lake, Op. 20, TH 12: No. 23, Mazurka
- Artist
- Pyotr Ilyich Tchaikovsky
- CopyrightID (CopyrightChains transaction hash)
0x3cc4ecbf386dc64ac46ea24b4fa72c09787491e49c9734ab1ea7452ef81f1def
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:72c54c85bd143f296d4c18730aa218f812e5d6607620d25c25ae8c238581780c- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE421500508
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Swan Lake, Op. 20, TH 12: No. 23, Mazurka · Machine-readable JSON-LD