CKC is a three-letter acronym that may stand for: Canadian Kennel Club, one of the national kennel clubs of Canada Canoe Kayak Canada Cervical conization, cold knife conization Chicago–Kansas Cit
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 0x1d05b6d512056af9cd88b5fa45812a6c955bbfada064fc322d7f275e53fe0176. Chain 2 (Bitcoin): anchored in block 954028 (2026-06-17T01:08:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/39d7022b-ac45-422c-bcba-3306afdfe94c.json and https://artists.proofprofile.net/proofs/artist/39d7022b-ac45-422c-bcba-3306afdfe94c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x4c3b68080944deebaac7393cf9555bc09234fff361b58dddc9df397bf404a1bb. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZNWR2539399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c11a67a597f42b30b88aceb99b74b15db0c08ed26e2c8733f914c0b597f20f5. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:08:15Z), 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/QZTAS2580985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7984b57a02c8ae1114b096d94fee24e9e5d062bd8e33e81e8dd7f03f761892a7. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T11:03:04Z), 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/QZWFK2547644.