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 0x538016c0d82f0aaa2856e4d8f1b847f7e3d846fbc2d7c1e9dd4031034b12e4b3. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eb51d112-0dc0-49a3-9055-1fd1d3e2137a.json and https://artists.proofprofile.net/proofs/artist/eb51d112-0dc0-49a3-9055-1fd1d3e2137a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
حوجي يانا شادرتيلي نتفكرك فليل نبات نبكي
وشتا يجيبك وشتا يديك بطلي بيرة نعقد عليك
لوكان عرفت هاك يصراللي ندير حساب من ذاك العام
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 0x617ef76e4a0579e6b3b90f67cda2bc14c901aeed7ac84e0e11240bc3f6cc4079. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T23:43:08Z), 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/FRX872549772.