Slit or SLIT may refer to: Science and technology Slit (protein), in genetics, the midline repellent signaling molecule Slitting, a shearing operation that cuts a large roll of material into narrow
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x233032285c65d55bdf642e2295feb8116ef29488a36c6df41df240fea5bf9dc7. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/43e2558f-86a1-4075-9ad9-169d89f1f322.json and https://artists.proofprofile.net/proofs/artist/43e2558f-86a1-4075-9ad9-169d89f1f322.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).