ISRC US3DF2421237
Verified recording
US3DF2421237 is “H2O” by Knak,
registered on the CopyrightChains blockchain with CopyrightID
0x272f39ef17f9d661364477624e2a21c26f553e9505ec7175e92e8482bbb6cbd1 and independently timestamped
in Bitcoin block 953515 on 2026-06-13.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3DF2421237.
Recording identifiers
- ISRC
- US3DF2421237
- Title
- H2O
- Artist
- Knak
- CopyrightID (CopyrightChains transaction hash)
0x272f39ef17f9d661364477624e2a21c26f553e9505ec7175e92e8482bbb6cbd1
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T12:53:06+00:00
- Bitcoin block
- 953515
- Canonical record hash
sha256:f97d6dbe8830c49bd060037279d1fb3448b1b049d57b750995833a3c08ffa53c- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3DF2421237
- Bitcoin block existence check
- https://blockstream.info/api/block/953515