Oscar Sibonginkosi Mdlongwa (born 29 November 1967) is a South African recording artist, DJ, record producer and businessman. Having been in the music industry for over 26 years, Oskido has reached
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 0xa2669e28442c0e09e10cd400a209fb3a8f2629f8efd402ac62caec3b59c3ec84. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fa43ec09-31b5-4e3d-970f-c3122cc34732.json and https://artists.proofprofile.net/proofs/artist/fa43ec09-31b5-4e3d-970f-c3122cc34732.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 0x6d7faf859f0e21f2d265757cb47f96375df93ce9412dfce9c54d26cb82587513. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR2X42320367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c9c1bb79d4b598c84eb3a806329e2e6fe843b2646d76f1de4675d3a19396ccb. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/FR59R2313552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe77c5db39043a65ccb01ccb932317e955a56a34c6e3f2aee4a781414bf5f02c7. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/FR59R2313553.
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 0x42e0d2b2cc8e3c439e799a8bbc0325701d6a2a0b68d546b68586aa23de102f24. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ZA61A1304483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeba62c3d8475a56ce5fb2d883771e1812a24affaf03c89c19b11c609b9b7a6b2. 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/GBKPL2170042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3210c08f047f382de991da34b98abd2a4a08c4e9e7284485613269aeffc6adfa. 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/SGW502417206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd376acb05ca62be17af1d3478a4cd1ec3bd3fc68503b0584007d6cb0e621978. 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/SGW502417207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3e699a35caad794a73bd0152dba48cc7bc1feb3230b95a0ab41806572727e85. 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/DGA0M2301519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb72ea1276497a9ac58176c6f97c7c1d3fe81d3051dff6f8434b329b2553557eb. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/DGA0M2301521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53526f9997ceaf0ec6853da049f6ab87dad1ca66db2ef0df7f756c42ef937d47. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-21T23:08:35Z), 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/DGA0M2301532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47011f413a07a988de63a01a34c760d48796784e01315124f469902df0d0883d. 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/DGA0M2301535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa942d63f02236c772e583376a8adccccfb22c718434c80783ff0d7bd10175c2d. 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/DGA0M2301541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b76d2fb5ae10f6b4120a7f43f590527bf462bfa5e13fe39c39148c35e7a0ba. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/DGA0M2301545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe09033b4f132dd5be0bc9719a4df9aa038b5a4f40858e92ef4ee78ed841d0a6d. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/DGA0M2301520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96ca2a6cf9cfa8604ab923f85d1348745a02ef12567f4a1a8cd3080ced6c8ba5. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/DGA0M2301524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15707b222bd79c0e369454fcda74e22a18cbfbc21c0bcd0e2974852e365f462b. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/DGA0M2301526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe562f7477fbbba5cc21e5b38c9befc44ddca46a1f8a479a58b1b1dcf1a63241d. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/DGA0M2301529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf70714fecd073725d16a944f30fbf19f193a1024456683ac979cc20d0d84e29f. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/DGA0M2301538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd789fe652e7c3f19984162a8a853fcfaa4d9f9db5473c67cfff1a016b5be406. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/DGA0M2301543.