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 0xc96d099a942a97ec7fa1205b56b6243ecd7864c31c75cdc2311efaa9ba18eab9. 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/2dc8c501-58d3-4782-8b17-45486f43262b.json and https://artists.proofprofile.net/proofs/artist/2dc8c501-58d3-4782-8b17-45486f43262b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Skoloto (feat. Daliwonga, Sir Trill & Myztro)
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 0x2e445fb4fb483407314ec4a2b3286e29f45ce9cb84151b5b3877058c9acc28c5. 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/ZAC012100073.
Duduzane (feat. Kabza De Small, DJ Maphorisa, Mark Khoza & Mpura)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x846ea6df0169fde6664ce6065c9429404a9fd881aaeebc05ae6ef730ec0c8e86. 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/ZAC012100074.
Nje Nje (feat. Mr JazziQ, Reece Madlisa, Zuma, Mpura, DJ Maphorisa & Kabza De Small)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11138b66ca754bc36a39fe3e65eca98441a1e380eee6efb52bc63c0009a85347. 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/ZAC012100075.
Ngwana Mani (feat. Madumane, Mpura, Kabza De Small & Visca)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd3845621a5e84379e64b0346b5ab295d4a963081e1d9a538fb2dc3330e8caee. 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/ZAC012100076.
Abafana (feat. Daliwonga, Mas Musiq & Corry Da Groove)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb38894ab6a96e188bfa02edff0c5e21c901434693376d0122024e34b764dc1bd. 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/ZAC012100077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x696a82dd54f404eec1b60d7488ae431c03b09a8a8fa9fb8577485815cc3c3aa3. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ZAC012100079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdef309cacd1cf1553859c6f77714834721fb4b5af8dc44bfa2df3a904645078. 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/ZB1OS2100018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f751e4909fbd1ff8505ee40a7a9b962b0d2d301d173bc7debe72be98316818a. 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/ZB1OS2100044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x001b65082570231dc5bef51a35af5a3020fccb2a2fc1cc3090baa1bddf7fb3ed. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/ZB1OS2200069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd563829a4ef6ccb898a63256cf65776fd5c991822a77a346c56b6d800672e8d. 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/ZB1OS2200071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e98c47b65b17a7f408e17c07bb0dd43551aeef135e682aa4b5d866303a40e24. 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/ZB1OS2200072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4111feed5cc070f33c1526be60ac491408c0f03b63f4bebb1340c9e688b0225f. 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/ZB1OS2200073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93be9c6448d39d556eb64b669251aafe7299096e3820909a2f504c72377011d1. 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/ZB1OS2200074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cfabf571377ecff9027541e26066c946e2500bd12b8a6f986a62e2d7496959a. 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/ZB1OS2200075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9bc13f316b80b946c18a26dd0da6f7e6406c62934cfebb7fe0041f46dab83a8. 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/ZB1OS2200076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd835b0bdf5479bccbb377771c9fc5f6b87749cc03a8f3ecbf72c2a63170b705b. 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/ZB1OS2300175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aac5bf10acf8b2173ffd8a91c86b3cd0bc23feda5611086f0c7be0d36c84584. 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/ZB1OS2300176.
Midnight Prayer (feat. Key note & LK Deepstix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f7cb56ec9e5db937c91886431cbd4497651fbd1476becc37e2c498cd5903f1f. 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/ZB1OS2300177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c3dea822f5889d693fcf4676d417861f2aadbb35d493a2464a63a22a5390f6. 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/ZB1OS2300178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cf2476c1429129fcee79dbebf52b65a0ab50c57ba8762c240fb9c0ea4003a16. 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/ZB1OS2300179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42061500704bc985d658a2d87f3712d3b445c794b781fe47ccc236072a6ad624. 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/ZB1OS2300180.
uDali (feat. Noxolo Ngema, Mawhoo & Tshego AMG)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a8360207f2d54fe4250d7bc527c864b0245f479e302d4474536c288f6eaa84. 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/ZB1OS2300181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x825b4e2b80c0a8f1ed9a4813d781b654a92e466d267623f8322a15d4578937a6. 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/ZB1OS2300182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13961724386f19f7769e2caf468d8c70770251b1685366a658393e542bc77083. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/ZB1OS2300230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b0d4e07ea6cbb156d0aed31ae7a7eec6cd258db1dd3060b690893d153ad10f5. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ZB1OS2300231.
Ka Lekeke (feat. Dj Motee, L4desh & Turnupkiid)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf53b19e91125d1402bc8dd5e994ce20a3b89adaf3ffd10000d2e84d4d738b8. 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/ZB1OS2400252.
Yebo Lapho (Gogo) (feat. DJ Maphorisa & Djy Biza)
Yebo Lapho (Gogo) Edit (feat. DJ Maphorisa & Djy Biza)
Amazekethe (feat. Soulful Disciple & Mdu aka TRP)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ee30f9dd85bdf0733247246d87301fcd7ad973636d7c4cfe40f0614a6b913ec. 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/ZB1OS2400416.
Amazekethe (Edit) (feat. Soulful Disciple & Mdu aka TRP)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a4d4cfe27a9f8068b90df0f84eca6f4d5a6c1e040d04cebe7970219ae7d7cf4. 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/ZB1OS2400432.
SIYAPHOTHULA (feat. Scotts Maphuma & Dladla Mshunqisi)
Sheshisa (feat. CowBoii, Lastborn Diroba & Felo Le Tee)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfde30a3801b9e4f4787eec0ef95bd567f818e2913d6382e52d51bed838f19820. 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/ZBN532400028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x821c9c6507d8ba8178b7e6886c4a339a9db6684127f78acac79211117d434e06. 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/ZA34K2201122.
Bafuna Mina (feat. 2woshort & Stompiiey)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x080882d226d85aa51c9c720e5bd95d071fb6147642f8faac316cf33e9aad9fdc. 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/ZA34K2201126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0656f507069c32c837b8ab43132e3c3b6b5c4150129986d15a4f125e0ebbb75. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:25:24Z), 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/ZA34K2201127.
Baba Ka Gurl (feat. Felo Le Tee, Bhejane, Thando, Ceeka RSA)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46cf00aa0d823a8c280bbd8b36fec6e0f027e5b2ab3b0d00d9d3c93bcb499c6c. 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/ZA56E2304203.
Iyndaba Zakhona (feat. Felo Le Tee, LeeMcKrazy, Ceeka RSA)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x671d44ac78102a9a14cce96802c7f06b71918aec662f2b3d22eb87767a1c27e8. 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/ZA56E2304210.
Nanini (feat. Felo Le Tee, 2woshortrsa, Stompiiey & ShaunMusiq & Ftears)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa05cb4f34ce5949ee1975035b09c11ae8cc69b2db114a2d6d67129f228074b0c. 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/ZB88P2300305.