ISRC US3M59454812
Verified recording
US3M59454812 is “Now You Know” by Stephen Sondheim,
registered on the CopyrightChains blockchain with CopyrightID
0x9b9018b51ab90645f0fbb880f3f31007ae209e404015f7e703f909497f2045d5 and independently timestamped
in Bitcoin block 960099 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3M59454812.
Recording identifiers
- ISRC
- US3M59454812
- Title
- Now You Know
- Artist
- Stephen Sondheim
- CopyrightID (CopyrightChains transaction hash)
0x9b9018b51ab90645f0fbb880f3f31007ae209e404015f7e703f909497f2045d5
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T11:30:20+00:00
- Bitcoin block
- 960099
- Canonical record hash
sha256:d68476f1865ebfd685f407f63b38653f598b3ee5b40f3745eeb3428a90000173- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3M59454812
- Bitcoin block existence check
- https://blockstream.info/api/block/960099