ISRC USA5R1134648
Verified recording
USA5R1134648 is “The Washington Post March” by John Philip Sousa,
registered on the CopyrightChains blockchain with CopyrightID
0x9a436eb0b9f7ad9e663607f049602971a6c32428feffe07d45b4c8575b226a6c and independently timestamped
in Bitcoin block 956304 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA5R1134648.
Recording identifiers
- ISRC
- USA5R1134648
- Title
- The Washington Post March
- Artist
- John Philip Sousa
- CopyrightID (CopyrightChains transaction hash)
0x9a436eb0b9f7ad9e663607f049602971a6c32428feffe07d45b4c8575b226a6c
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:28049c618960649d90aab2388f8e57b5b0f6cf58707375e134383c2553f162a6- Verification API (seven-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA5R1134648
- Bitcoin block existence check
- https://blockstream.info/api/block/956304
Full record
Track page: The Washington Post March · Machine-readable JSON-LD