Michaela Dietz (born November 1, 1982) is an American voice actress whose professional career started in 2005. She voiced the character of Riff on the PBS children's television series Barney & Friends
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 0x1c0e61c0eaa2bbb81779680f336a2639b1f39d4a6903db7de3c26219a3665d6b. 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/e57e800f-a938-4205-8a19-d588347d8f38.json and https://artists.proofprofile.net/proofs/artist/e57e800f-a938-4205-8a19-d588347d8f38.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Happily Ever After (feat. Zach Callison, Deedee Magno Hall, Estelle, Michaela Dietz, Tom Scharpling, Uzo Aduba, Jennifer Paz & Shelby Rabara)
Steven Universe The Movie (Original Soundtrack) [Deluxe Version]
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 0xf07d54ff7f24c1d6cbc6ef4857a8fe5cc33a31a0cc2f4a4a2ad18a911a9b15d8. 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/USNLR1900417.
Other Friends (feat. Sarah Stiles, Zach Callison, Deedee Magno Hall, Estelle & Michaela Dietz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11afc78837bcafa9d96cce6cc90e40c629393dc8d8981960ec68073e69f48e4c. 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/USNLR1900419.
system/BOOT. PearlFinal (3).Info [feat. Deedee Magno Hall, Tom Scharpling, Zach Callison, Charlyne Yi, Erica Luttrell, Michaela Dietz & Sarah Stiles]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd49931e0ac9998d822a76018b4fc5ca3abad539b4878eb06ae4549e946943f25. 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/USNLR1900421.
No Matter What (feat. Zach Callison & Michaela Dietz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd718a7cb4d7254acf76d0acebdde7a64601cbe3db1605a51bf102a15e89ecf26. 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/USNLR1900429.
Disobedient (feat. Kate Micucci & Michaela Dietz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41d77741100b9505ff0e4e8b13a6f85bc130b0033a8ca0facbd228be62215bfc. 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/USNLR1900432.
Other Friends (feat. Sarah Stiles, Zach Callison, Deedee Magno Hall, Estelle & Michaela Dietz) - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb272bc627238f98b16a8ec5da09d5fbd6cdc0338468ac28ca6b3d5d70ffff766. 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/USNLR1900783.