Selce () may refer to: Albania Selcë, a settlement Croatia Selce, Croatia, a village near Crikvenica Selce Žumberačko, a village near Samobor Malo Selce, a village near Skrad Veliko Selce, a vi
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 0x5632085605b82a8dc2ceedb86fc3a70976c4b5b8ef6ccdc5f82fbb0b3e6f21b4. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4eced3e8-15cf-45f6-95cc-c30009de2181.json and https://artists.proofprofile.net/proofs/artist/4eced3e8-15cf-45f6-95cc-c30009de2181.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).