ALEKS (Assessment and Learning in Knowledge Spaces) is an online tutoring and assessment program; ; . that includes course material in mathematics,; ; ; ; ; ; . chemistry,. introductory statistics,;
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 0x64fa02a9b9503277eabda686d6a94cc228557a4cb29838c79ddab91acfb24124. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4929bc76-22a9-4566-acbf-f51d305e5714.json and https://artists.proofprofile.net/proofs/artist/4929bc76-22a9-4566-acbf-f51d305e5714.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).