Seth Kevin Chamberlin (born November 25, 1963) is an American actor and singer. He is known for his theatre roles such as Dimas in Triumph of Love, Horton in Seussical, and Uncle Fester in The Addams
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 0x5a56339aefe0ad42484a42777ecd1da139af064cefdf9e492dd20c2aea044af4. 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/d8e54a69-9cf2-437d-8ffd-3a331cd9c5eb.json and https://artists.proofprofile.net/proofs/artist/d8e54a69-9cf2-437d-8ffd-3a331cd9c5eb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Addams Family (Original 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 0x53a9d8274dda7229586a331aaf73ee175fae08778e7e8d45a54ac81dfb0f6338. 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/USUM71013879.
Let's Not Talk About Anything Else But Love
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc145de0de665680586f75ef6d322185ef627553dbd9b7bb919f945fcbb3263b3. 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/USUM71013882.
Let's Not Talk About Anything Else But Love (Reprise)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd31c5ab689fcaf7eea07b4c5b49bd71088b0fffe1a1aa552a31470b92cf66539. 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/USUM71013883.
Disaster! (Original Broadway Cast Recording)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa879717d83d58a9f5736f36e81a8186ee52dbf6ba207d8d973f603934c54340f. 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/QMQYB1607009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc55a069138cab8f1d62b4ceaeb46a1bf046488cb6e0f1b45bec1fb89a06c016. 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/QMQYB1607017.
Chapter 1 - The Arthur Miller Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ce31f2e385a847012c7079bf6eeaff80fe052f2da427a7e3efb32a796c89747. 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/DEXN92287059.
Chapter 2 - The Arthur Miller Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc84192ac2c6e137a2a56a07c4271764e0cb4d3675a48d2736157102704cc7da. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEXN92287060.