Kayo or KAYO may refer to: Media and entertainment KAYO (FM), radio station licensed to Wasilla, Alaska KYYO (FM), radio station branded as 96.9 KAYO and licensed to McCleary, WA Kayo (music),
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 0x2e23b3a29cd0372b445b2a6f7bd9a8e284ed0dc8d208147e9df46efdcdfc7963. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6899f4ed-a9ef-47fc-93e6-92eb668d9a46.json and https://artists.proofprofile.net/proofs/artist/6899f4ed-a9ef-47fc-93e6-92eb668d9a46.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 0x7fa90c1d91347edb716b77741e6a96a9bb70cbb33a5111e0b5fec326f9d7ba83. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/CABD61504602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c3aea8b93db03ba50d1b2762452bf04f8a98bc1644ae8075e80a02c624b9743. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T10:08:55Z), 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/CABD61504603.
Helen (feat. Loggo Lionel, Curmiah Lissette, Michael Robinson, Rashaad Joseph, Teddysn John & Tori Elle)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e0e53ec06b7005c8ed49b1b0941fd0ef6515b8ff68dc2fbd3df56d252fd157a. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USLD91762696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f926eac14e47a00f458ae97484e6df1c4ebcb62d7f31f93391307990e5a3f04. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:16:01Z), 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/USLD91771854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16cff5c43e1b56d2819cc86fa50834030b546ac231413786bd4400514af1f332. 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/CBBYS2300026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91a080a17f2041d1a2e5b46ff0de708cb198ce9f180d14ed1666b26422c370c7. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/CA5KR1573112.