Nkosinathi Nhlakanipho Mavuso (born 25 January 1994), known by his stage name Langa Mavuso, is a South African singer, songwriter and performer from Johannesburg, South Africa. The singer released his
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 0xe8fee5ca7a84b3781992c9a7b3e93292ccb0908c7235adf21c14f8a0588c7bad. 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/4f0ca816-a02b-4116-be3e-4592e5af4a79.json and https://artists.proofprofile.net/proofs/artist/4f0ca816-a02b-4116-be3e-4592e5af4a79.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 0x1918846a418711100325bb4a488e0b282f49d0992f66680478123057af53a742. 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/ZAI911700148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08ecc6dde7ba5d9488f73d4056f08f98ca96039dbb9b0e7c8dc956cb4065f097. 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/ZAQA51900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8de4afde00c6401c12d9133696231917203d0681a3e3fcb8f6f3200740bae5da. 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/US23A1512281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa30713c5eb7213321ce2e8944bc5bda46ece81eb6c391b777714897553e468e. 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/ZAB7A1900446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08ecc6dde7ba5d9488f73d4056f08f98ca96039dbb9b0e7c8dc956cb4065f097. 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/ZAQA51900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfcd9a8b1c6e48a0da0b938c2b11e321163037354c62d0819c0a02acb77342b9. 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/US23A1512282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65eb4a8bfa1d951cb018bfba2b53388e93e471a6018cd92131a9cbcac2de3b50. 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/US23A1512283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x131f8710c853019d549119f6a3f4a6ae3b151f5ff2351857cf388886051dd4c5. 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/US23A1512284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab72aafc29f7600f15a190a0b8dc9721617b70725cb5b27771dc927d120fd0ff. 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/US23A1512285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd9c51d50f5d764b053bf1f6defb9df9e213ab6244201116b452208a648b9543. 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/US23A1512286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7845b1cffde03a16d5ad3c494c9ac5acb035e655959713a4db3b90155e0920c. 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/US23A1512287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd34adf2aa6a2941ced445fa32ddda2283dfbb619a03a3fa29e1cd8e82290114. 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/US23A1512288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0dec42786c23b7ca47248bc1a5fb0f99f108932f071445b8cd20cd9f1cc75d2. 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/US23A1512289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27037585235033d24fac31170490bed50cbddbf5555b0c80e484d09013541eaa. 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/ZAQA52000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x477b0a52767d1617a90b32ea5a1f5331893ac2937fa06f541ec6c616416b8b50. 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/ZAA012300315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77a354de3c636503887c11e00ff04e160f0b037b19ddb8e6526d2c31dd786af2. 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/ZAA012300269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x183f4cb2a70d1d8559ea01314db29809a92db4ca09dc6ddd665c7ce993bfa095. 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/ZAS8F2200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81df5ef2cdd54a3e2297772d5e52cbcde50eca6b0c05ba089becbdc13d811f6b. 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/US23A1539065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x131f8710c853019d549119f6a3f4a6ae3b151f5ff2351857cf388886051dd4c5. 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/US23A1512284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27037585235033d24fac31170490bed50cbddbf5555b0c80e484d09013541eaa. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/ZAQA52000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a9cf1a7ac3ef7e7bb57c2b6f5fa9f905bf24cb43337fd4069dfcc4df01bcbd5. 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/ZAQA51700010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd6e234e4ac9aa1d90d0a0dd070614aa3fcbc33e2f1c31685445b727d2060321. 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/ZAQA51700011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad54fdfa215f3831b7ca77bf350920f2db723fd48ce6d5445aee4118972a873f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ZAQA51700012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73e1a95ce6d2aaa4a4a20fa150e5382f261797a9c0557cc6e8a172323dab3034. 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/ZAQA51700013.
Heartstrings [feat. Bongeziwe Mabandla] (Bonus Track)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5a43ea5fe77594f548c0d0c28c2efba61f15232c730e1023e9935d4b90f3877. 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/ZAQA51700014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c0540ad684574a7558d7a44cd8f7db5dd11c57175fb638fe116d4ac59a5f0d. 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/ZAQA51700015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa30713c5eb7213321ce2e8944bc5bda46ece81eb6c391b777714897553e468e. 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/ZAB7A1900446.