Kristoffer Cusick (born March 29, 1974) is an American actor of stage, television and film. He has performed in such musicals as Saturday Night Fever, Rent and Wicked. Career Cusick originated the ro
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 0x3d8262e45d151efc217a9a072b59c45fba4be554e25ccf0580a19290acfc4f41. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f3dcec2b-e14d-409d-87ee-e985528108a7.json and https://artists.proofprofile.net/proofs/artist/f3dcec2b-e14d-409d-87ee-e985528108a7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
First Date (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 0x281568958fb39959313d72dfcabd29f42a95f238579d63091ae786819771050b. 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/US6W61390001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2a9fe091ed46e72c925aa2c11e60791b1904b5a52a8eca8e07f7feb7bc1ebdd. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/US6W61390003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f7c00d8dc685ec9d1c0e65bd3c91019cc67a4eb5ae6e3e30c08c954dbc09544. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/US6W61390004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb87327bab9c9053486e2a6f45a0e08b2450312abe26fba21374c9ab4acac362d. 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/US6W61390005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06582cc65eea27d17b122db5b41cfb0e3683144a08779e3cee4324dd1b49d99f. 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/US6W61390007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8b9bd224a676ddd46ee753d76cec9cc8263ab448bce48456f5e4af4e803201f. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/US6W61390013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b98478e8e097292561b8459d8d5eb4616764c8c532e1fcd9ae64095d3a2f38d. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/US6W61390015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94fb9da443a92aa3c8934d3e64cacb16a313e59fe8b8634835cf47677152db5. 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/US6W61390016.