Charles Mayberry Kimbrough (May 23, 1936 – January 11, 2023) was an American actor. He was best known for his role as the straight-faced anchorman Jim Dial on Murphy Brown. In 1990, his performance in
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 0x4b3882dfc73ec50e876bdc58c17ce38cb8fe023a5ae9f46fe4ea8a49ca488304. 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/a398defa-ea23-4229-b042-de4464853c7b.json and https://artists.proofprofile.net/proofs/artist/a398defa-ea23-4229-b042-de4464853c7b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sunday in the Park with George (Original Broadway Cast Recording)
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 0x8193c756330c16b283cadf392f375e596714f945d30da5cb2b27e584e4876dd0. 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/USBC18400139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c99154aebd413fff561eef789d77972c359005c587bb028560bbd47ed31d021. 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/USBC18400148.
Sunday in the Park with George Original Broadway Cast Ensemble
Sunday in the Park with George Original Off-Broadway Cast
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cff8b22f9bbb7ea8eb2dcf35229612f60eaf12663a2e79e9d525a55b8fdefc4. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/USBC18400146.
Company - Original Broadway Cast: Sorry-Grateful
Company (Original Broadway Cast Recording)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a2e72f5a11dba05317b9a48315b2963e63ff34ecf26c3e4bac90a42e7b9e752. 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/USSM10112732.
Company - Original Broadway Cast: Have I Got a Girl for You
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe66226b230f86131df3e9eb45686fe36cbf28f32ecc873abf1c7522092f735c5. 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/USSM10112734.