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 0xe8c6b458816776f9702d9ab9da6000140722b4486e22eacffbb44eff6308646e. 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/ad5db285-0a7b-4ff3-944e-679f8d5d9486.json and https://artists.proofprofile.net/proofs/artist/ad5db285-0a7b-4ff3-944e-679f8d5d9486.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ayoyo (feat. Focalistic & Kabza De Small)
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 0xa652426e6982ffad8f5ec4798c9abce6bfb5d535eee2634fa95b9083c1c5b8b7. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ZB1OS2200126.
Sengibonile (feat. Kabza De Small, Mawhoo & Freddy K)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dfa3df090cb344d4e0f9bdbb75015cdfbead32fd40f1a10f510512b3e02f97f. 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/ZB1OS2200127.
iSgubhu Sa Masupa 2 (feat. DBN Gogo & Freddy K)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a027d76f00eb740ee28224b83fe1e6346123eb413aaefd53ce73f94a46828dd. 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/ZB1OS2200132.
Lento eSiyizele (feat. DJ Maphorisa, Freddy K & Khalil Harrison)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb33ed39f1bf5b7d215046853014d133779d006a83dfa978cba60b4f9d9b5d77b. 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/ZB1OS2200134.
Ububanzi Bakho (feat. Khalil Harrison, Lash T, Lee & Nathi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae15013d1381f97c776877d7cc0c5367f62f85a85ce858e4e65308394579dfa6. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/ZB1OS2200129.
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 0x44c39e15f2e9822798ff4c7e33587e1cee95295868acd826e302e4a1e72d3cc4. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/ZB1OS2200131.
Uzozisola (feat. Audrey Manana & Bontle Smith)
Joni (feat. Madumane, Daliwonga, Vyno Miller, Kabza De Small & Myztro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc35b2d980e8df15e43b1e0961eebbcf083e4838d8099de97cf1be8402d9df236. 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/ZAC012000349.
Serious (feat. Bontle Smith, Vyno Miller & Kaygee The Vibe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3c424c18fd8b073bee94fabe6a1c0b1908aa10a3e5d876e1da1ab03ac13d3f5. Chain 2 (Bitcoin): anchored in block 957012 (2026-07-07T08:27:05Z), 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/ZAC012000360.
Samthin More (feat. Vyno Miller & DJ Maphorisa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd43994dde402a4cb3fd4dd4b0bb8796bad76ab1e12f6a6ceacbf3ace0094c187. 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/ZAC012000362.
Snqanda Mathe (feat. DJ Maphorisa & Kabza De Small)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77e4eea9cad159db297c12ff5599f9164c29d8ec5c2a21be716b1e671f4aecc4. 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/ZB1OS2300166.
Ngwonile (feat. Howard Gomba & Vyno Miller)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a620dbf04f6984fc9a42fc7898bf5ca577fd669be81c459e02fe3a5587fbb6b. 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/ZB1OS2300172.
Piki Piki (feat. Vyno Miller, Cassper Nyovest & Myztro) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67d115e0b37534df94353804e340a7dc77a9c742a7874303f73ff052d7602470. 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/ZAC012000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cfabf571377ecff9027541e26066c946e2500bd12b8a6f986a62e2d7496959a. 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/ZB1OS2200075.
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 0xa86eda2717aa65dcfdcaae61acff9834c8bbb22368c3f636cd7fe0f8d986e1a8. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/ZA56E2301994.