Carrie Marie Underwood (born March 10, 1983) is an American singer and songwriter. Known for her vocals and dynamic stage presence, Underwood is recognized as a pivotal figure in 21st century country
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14fbdd2de138a0d42a14ba2551fcb6a9d0351082381a352065fd69caa8aa61b1. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1d007133-333c-4e1c-98e4-adfed487dd80.json and https://artists.proofprofile.net/proofs/artist/1d007133-333c-4e1c-98e4-adfed487dd80.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).