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 0xd42b8043c33745b5a482a908b7d78fc8947380aa9b1b810f89dc11be37a059fa. Chain 2 (Bitcoin): anchored in block 954717 (2026-06-21T15:47:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f78a2883-18c2-469c-a0f1-6e32c0eab2cb.json and https://artists.proofprofile.net/proofs/artist/f78a2883-18c2-469c-a0f1-6e32c0eab2cb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ali Dji - YARMOUK 2 | 2 اليرموك الجزء الثاني
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x407b6b44aeb0d02964b5b6f644bb44e875b12a50891ebced491a59c104b82bc1. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T16:39:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN72507027.
Ali Dji - YARMOUK EP 4 | 4 اليرموك الجزء الرابع
Ali Dji - YARMOUK EP 1 | اليرموك الجزء الأول 1