Kioko may refer to: Chokwe: The Chokwe, a people of Central Africa Chokwe, a language of Central Africa Pancana, a language of Indonesia See also Kyoko
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a1f62c71002813063b6db793b98201aab8ea0fea5ddc283ef4f5d6b98925fb9. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d9b3a18a-026a-4852-9441-5d59dc663837.json and https://artists.proofprofile.net/proofs/artist/d9b3a18a-026a-4852-9441-5d59dc663837.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacff666d6e9863909ea3a38d605a95b09f47e5b1c8492606c5ecb44713f58756. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USANG2214282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb25745bb6d9d7e233f8d30f93233cb5c697f0d72867fbb9b75484cc33bfc0bfb. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/USANG2214281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b2487127ba3eed3d3572c3be6ecf660592b559494e45006498fbe9c3fabc62e. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/USANG2214279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e95b12ceda14b4ae30dec94da542fe06e5984dcda09a901c372fdd009def565. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US3DF2418961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a572e66d837d860e8544a74153a00bcd2f23a75e923e2365b0c68e072746776. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/UKZGC2307388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1c33e5a5b58a4f49bd704560b585c6356c4449b8c3991304cb275667c49a3ec. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USANG2223288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0274817e364f92805ae5fb2c0e6695d4385248f87f93e4a8ccd002b5f4210dc. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/UKZGC2303313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb019b697e13f6deb651b789ce1947aa192a75b282ba1ca9889b9f5b214811d4. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/UKZGC2303315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82b0d32c3b792b8d8e312e99422d0441b73cbe2437d40b1e3ca69776887b0ad9. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/US3DF2405375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca9e8e781836affc13c61256915255794a64572e0130ad79a08c3ca58b3b89a1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/UKZGC2308382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7e49672d70a22297be7590f352a6cd80542f4a1a1892cf51670e56fa3023933. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/UKZGC2308383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e8b2a228ec7816c3f46957734283650fb7339886fdd50d7242fe12b8bd5a2a4. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/UKZGC2308384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b4fa44574372a48b7484a94854184b933759755f5c74d1608ce8953b4d7f62b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/UKZGC2308385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3111d09d50b51c69c9d214b1abfed3d60a0b9cb4366ad67ff3114708ef3ed2a1. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/UKZGC2308386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffe77dab701a83b6d38cc82fda7708c4210360663d68d93949d0f90669205c1c. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/UKZGC2308387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be483b320a8fce8374a843975781a2bf586b55e8764a1c3d902d809d02b6ec2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QM3DF2215790.