Mashonda Karima Dean (née Tifrere; born January 9, 1978) is an American R&B singer from Boston, Massachusetts. In 2004, she married record producer Swizz Beatz and signed with his record label Full Su
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 0xcd07697f46675afd2e8dfe7da1ab9ef43bca0f8a6ec7bf1f2013a77e82c35000. 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/d882a324-0cfa-438e-9c8d-1f521d34435a.json and https://artists.proofprofile.net/proofs/artist/d882a324-0cfa-438e-9c8d-1f521d34435a.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 0x3a0d1060e5d2c282fa1f255509d23260e354c9c75b7388e1140c1515e8cbc6b8. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/USJAY0500063.
Blackout (feat. Snoop Dogg) - Main/Dirty
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7837078bf7050bdbde1b31f4d1b1a54bfbffdbccf591ab16784411bdadead0ee. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USJAY0500336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ee5390d3e787110ffb9b8581a678a05674b8cad584a715023ea65dab0ee3a95. 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/USDW10200155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4126fe6b28fae00dce4278817b46d5b9d671ea078e5ad03df362f14d9a8ebdf. 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/USJAY0700204.
So Long (feat. Mashonda & Raekwon) - Dirty
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3a85518d1962845072a18a972a7901d137c613fcdf42df03832ed62327c13c7. 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/USJAY0500298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe8721913dc1e83d898c0373eedd90fee974352fb20890dba35a6969e01242ea. 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/USJAY0400064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0e275ec9afbf4155134dd76abefd737f4849e1f7e10e20348674a7600745fee. 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/USAT20502544.
This Is Who I Am (feat. Swizz Beatz & Mashonda)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04f85713401963816399d2c26f31bfc9c276c37e9005df4e53ca6dccd0c54ac8. 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/USAT20300268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04f85713401963816399d2c26f31bfc9c276c37e9005df4e53ca6dccd0c54ac8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USAT20300268.