A vow (Lat. votum, vow, promise; see vote) is a promise or oath. A vow is used as a promise that is solemn rather than casual. Marriage vows Marriage vows are binding promises each partner in a coup
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 0x1622e1fb32c0f7539c979a17d82c3deacd5dbcccf11cee5245685a1e7e9ea24e. Chain 2 (Bitcoin): anchored in block 954047 (2026-06-17T04:56:08Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/41baa944-96cc-45b3-a323-9d1d6dfa26e8.json and https://artists.proofprofile.net/proofs/artist/41baa944-96cc-45b3-a323-9d1d6dfa26e8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).