ISRC USQX91903033
Verified recording
USQX91903033 is “Introduction and Theme” by Pyotr Ilyich Tchaikovsky,
registered on the CopyrightChains blockchain with CopyrightID
0xadd1a3f4b4cb15544c4ae38759e788adcfb49d2b9246ef4a60d7f8ec7814e6bd 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/USQX91903033.
Recording identifiers
- ISRC
- USQX91903033
- Title
- Introduction and Theme
- Artist
- Pyotr Ilyich Tchaikovsky
- CopyrightID (CopyrightChains transaction hash)
0xadd1a3f4b4cb15544c4ae38759e788adcfb49d2b9246ef4a60d7f8ec7814e6bd
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:efa29015c9f4d549d1cefdc27292f663ff9de58a4bd06fea0082d2b5a3e03c85- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USQX91903033
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Introduction and Theme · Machine-readable JSON-LD