Stava is a locality situated in Österåker Municipality, Stockholm County, Sweden with 305 inhabitants in 2010. References Category:Populated places in Österåker Municipality
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 0x6fd10a59878ae868f2977994aed715f5ba164c14334c77cd3b6beb5fcbabb316. 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/24aec01b-867a-4d33-a6ab-e97ad95c814a.json and https://artists.proofprofile.net/proofs/artist/24aec01b-867a-4d33-a6ab-e97ad95c814a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).