KO, formerly named and credited on stage and screen as Karen Olivo until 2022, (born August 7, 1976) is an American stage and television actor, theater educator, and singer. In 2008, KO originated th
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 0x210b49ef0b7cf3715928b07455f58933413add11dd294feefd701c30a973ed63. 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/4dc819f4-df60-4c32-badb-85a6aa7448fe.json and https://artists.proofprofile.net/proofs/artist/4dc819f4-df60-4c32-badb-85a6aa7448fe.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 0x080c9983ac91b5ddec9187d5ac7a5fe6e04a1d1ac5067a678f478545fd368331. 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/USRC11902271.
In the Heights (Original Broadway Cast Recording)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0deab19153e408142a6abdbdd67ffe7e585ce9a13ce27782747ffb430fc69784. 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/USSK30896003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcd69095a4d566d8f285a818814edefd33395db3c030003a43c4bcbfb432551c. 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/USSK30896005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcffd3527c1283b2fff9a4896b947760c21956113c294981d37590c45bec872bf. 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/USSK30896020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d69fa3d8480c71f7324f48cbd4263f0afe4e87c36dc89f7bad16ea2e9aea72. 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/USSK30896024.
New Broadway Cast of West Side Story (2009)
West Side Story (New Broadway Cast Recording (2009))
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x468c4fd582d16c89eccb0a23540ab557533883f31a79be071d090ca609c7e541. 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/USSM10902508.
Un Hombre Asi (A Boy Like That) / I Have a Love
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27369689d84e4d2d822b55fc0044084148e99549b3f3eeed2cb7dceea4a87808. 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/USSM10902516.
Original Broadway Cast of Moulin Rouge! The Musical
Moulin Rouge! The Musical (Original Broadway Cast Recording)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x080c9983ac91b5ddec9187d5ac7a5fe6e04a1d1ac5067a678f478545fd368331. 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/USRC11902271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34e85770bba7a9d2a12f50799b6bfdba8ec139d1d9e9eab8b972419dc9030e8e. 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/USRC11902295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd43a13788386000295a14938b36f3469aeefe1b74db89ba970f67e4169c95331. 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/USRC11902311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf874694c34c3de50694df6286f3052c33ce90df35e86ef935ffedd944a5010d1. 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/USRC11902297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f4580e938a59f92cc8b921fb09cb5a8a90d555923cca3eedb0974b792f11573. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USRC11902298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x666bfb7ddbf892d506f718b71cc2e2cbf870b193a5c377806c11b232727a1388. 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/USRC11902299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc43ad9d6cb9772ee9815d15773d5a682e678694a9a345b324e740ad9f294d9c0. 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/USRC11902301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe366687099a3aa327879393a85d22531f5be2d236e14c09b9afe57e4ad930474. 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/USRC11902303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9581fff6dfac7a6355c03dd36c2edaa788a45cefdf79de41ac0b8258524563b. 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/USRC11902304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb48d81eb185fc6c3f9190be065cbc06b50685b763dd49287e731ee106f082d87. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USRC11902307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b706f8cfcd5533c8ae5391fa4210b29e578c6fc0293c6edab83398e1d89ede4. 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/USRC11902308.