ISRC DEF057101681
Verified recording
DEF057101681 is “Swan Lake Suite, Op. 20a: II. Valse” by Pyotr Ilyich Tchaikovsky,
registered on the CopyrightChains blockchain with CopyrightID
0x8c89e57e20f70aa334e4cc4420f22f81b83c0725ecf3b14f80f37ef6b3225614 and independently timestamped
in Bitcoin block 960138 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057101681.
Recording identifiers
- ISRC
- DEF057101681
- Title
- Swan Lake Suite, Op. 20a: II. Valse
- Artist
- Pyotr Ilyich Tchaikovsky
- CopyrightID (CopyrightChains transaction hash)
0x8c89e57e20f70aa334e4cc4420f22f81b83c0725ecf3b14f80f37ef6b3225614
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T19:35:34+00:00
- Bitcoin block
- 960138
- Canonical record hash
sha256:ff744ca39ed10f855474c1c8527f3e422aa294ed52477779461d9c196c07a2a8- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057101681
- Bitcoin block existence check
- https://blockstream.info/api/block/960138
Full record
Track page: Swan Lake Suite, Op. 20a: II. Valse · Machine-readable JSON-LD