DAE or Dae may refer to: As an acronym DAE (chemotherapy), a chemotherapy regimen consisting of Daunorubicin, Ara-C (cytarabine) and Etoposide Daporijo Airport, the IATA code for an airport in Indi
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 0xcb28bfd557f9439b177155c1d8050a91c096bf23b33ddf5ea4f6aae74a901a48. 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/4bbd78a0-a58b-421b-834f-2dab8788e75d.json and https://artists.proofprofile.net/proofs/artist/4bbd78a0-a58b-421b-834f-2dab8788e75d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).