Marshall Julius Jefferson (born September 19, 1959) is an American musician, working in the house music subgenres of Chicago house and deep house. Biography Sometimes known as the father of house mus
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 0x887fff26de43307fe1f59b1269e92d501fa259d414a5103d8778a28e4638ab9a. 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/71dc3477-426e-4619-a7dc-5ab276e53933.json and https://artists.proofprofile.net/proofs/artist/71dc3477-426e-4619-a7dc-5ab276e53933.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc25858430d00188d246a303f7a8b4d56c3d405a40696ffe43df999b5c1e66df0. 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/USSM12209685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cc2fb80ce4f78f900cbdb1ba3e43bbf2bd548d3d87d126fd183c61a72aa41cf. 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/USUM72017462.
Turn Me On (feat. Vula) [Marshall Jefferson Anthem Mix]
Turn Me On (feat. Vula) - Marshall Jefferson Anthem Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb6a8900f3987afc7258318316986729e79dce478a769bdebd0106476b864f82. 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/GBCEN1900078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x005cab0f7b9a0a4924a34fda1104f2de1359197117d1c6bdeeba6aa082ded324. 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/USUS11900546.
Only A Fool (with Pink Sweat$) [Marshall Jefferson Remix]
Defected Presents House Masters - Marshall Jefferson
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1160aaca784575b6770ea28a1bf91af0c1d350b9a49e23d6329630119013fc05. 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/USAT21207626.
Mushrooms - Salt City Orchestra Out There Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5426d27abb88d5eb233fcf9c3200cac2d311553893a58adb831b2af4e303b748. 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/GBHCD9802010.
That's The Way Love Is - Underground Mix-Extended Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa04bfa0c47cc2cf1142dea003fbe74db88f5926722708aa1e523f99126460177. 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/USEE10250638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeebc32f478779f758dddfcb64816ebe3458270ed846fc4920f34e260e6640754. 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/QZUCN2200219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c7111a268579b1d1e3f2f791786d1112ced8c375fc2ac28726c44bbae2df60. 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/QZUCN2200457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d4c172c1b5794dc0f777db38d5e2141dd2853d653e2e1517a52a7e5c0284447. 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/QZUCN2200459.
Move Your Body (The House Music Anthem) [feat. Curtis McClain] [Sped Up]
FWD (feat. Rudimental & House Gospel Choir)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4675f3fb14252f522cb3ab63e9069961088639dd764f42d59008caa288bf8bb. 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/QZUCN2200381.
Move Your Body (The House Music Anthem) - Remaster [feat. Curtis McClain]
Music Saved My Life (Marshall Jefferson Remix)
Deep In My Soul (Marshall Jefferson Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe2cce755417ec0f0f0ac0a11e6c23306b22ed2e2a39e64ca8beb16cda193829. 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/USUS12000597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88e358fe7d641e42096800183dd9c480c8cb335cb6dee3e1c0d0d330b7d64486. 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/GBKQU1758425.