ISRC NLE421803921
Verified recording
NLE421803921 is “Swan Lake, Op. 20, TH 12 (1877 Version), Act II: No. 11, Scène. Allegro moderato” by Pyotr Ilyich Tchaikovsky,
registered on the CopyrightChains blockchain with CopyrightID
0xd1b965aa04640f9ecc12c4cc7ec705356f6c2bf4df2076c4df5aa86bf8b5c357 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/NLE421803921.
Recording identifiers
- ISRC
- NLE421803921
- Title
- Swan Lake, Op. 20, TH 12 (1877 Version), Act II: No. 11, Scène. Allegro moderato
- Artist
- Pyotr Ilyich Tchaikovsky
- CopyrightID (CopyrightChains transaction hash)
0xd1b965aa04640f9ecc12c4cc7ec705356f6c2bf4df2076c4df5aa86bf8b5c357
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:e5e3f8d364a2e0249dc0640daa88afcf157b84578f3024b875774a56fd585ac1- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE421803921
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Swan Lake, Op. 20, TH 12 (1877 Version), Act II: No. 11, Scène. Allegro moderato · Machine-readable JSON-LD