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 0x910958b5fbd492ed4441fa2bddb6ef5b3ecb9ae25eac7821d827fefdc010d35c. 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/70dfc813-77f5-4269-9113-e4c7351a6df6.json and https://artists.proofprofile.net/proofs/artist/70dfc813-77f5-4269-9113-e4c7351a6df6.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Bhuti (feat. 2woshort, Visca, ShaunMusiq, Ftears)
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 0x665345705598cff6eccdda625b1b3f5eac7fa9346a770ef81d337d829ab46b81. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA56E2302135 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1f4852fa6afb82642d586f512d2469e8a97f3e4f87d4c02d1cffbc8d5521152. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA56E2304039 — a six-check JSON result.
SHELELE (feat. Ray&Jay, Effected, Triple X Da Ghost, Rhythm Tee, Kweyama Brothers)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2af3edd773b6c5370d70084716cefed879f6b89c08cd2d02f4f91e2e2b9ed1c6. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA56E2315000 — a six-check JSON result.
Yoh (feat. Chley, Thabza Tee & Rhythm Tee)
My Help (Umncedi) [feat. Makhanj, Nia Pearl & T-Man SA]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3b68e1e8a0cdfe1c9c805ca8daa57074dd0de41e3a8a403c15e9fac9c661523. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAJMF2100001 — a six-check JSON result.
Isango (feat. Josiah De Disciple and Nobantu Vilakazi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea2aaf6f2a26bb6385c45bc8047457cf272423b46433db168de7fe9733cca040. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA82Y2100174 — a six-check JSON result.
Tsetse (feat. Nobantu Vilakazi & Kay Invictus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf736aea79d46b5f9722ae8cde10c5ef4ba81f02f46f6774a5aa220828edfc114. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAA012300240 — a six-check JSON result.
Bayazi (feat. Mellow & Sleazy, Nobantu Vilakazi, Cowboii)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d9a37f432514f1d562609a19bb7504a01d27901ab57cbeeb2a4a457fd8a35a7. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA56E2314969 — a six-check JSON result.
Sizoba Mnandi (feat. Nobantu Vilakazi, Amu Classic & Kappie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x450bdbd9c5c3bac8218bed0a62c20425ed6dcee88dedaef4bc6c3542c54c5386. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA41S2102444 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2adbd5c6d98fe8084d3424ef02d453a092b63edde389d3ccf0f9b33e585ef22f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAY362300882 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3562497a35831463f54f4149e68f6cf4cc2cb72e1a761bd06f0f8db06b2e38f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA82Y2100147 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aded809df41a6130e83d761a882d5c4411e76223042746287788a77048c5ebc. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA56E2101145 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48cebbeeaa48474fd550479d9ca1cc0297893238f31d06125ebbac4fdd52df67. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAC012200722 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76e832cacdff657c518273743acdee7140a5c585edf334ad697abd455ecc3a28. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAC012201088 — a six-check JSON result.
Banyana Ke Bafana (feat. LuuDadeejay and Nobantu Vilakazi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2665df6fb3a29707f7f6acab4bfb84a56a20d2cd98ba6d1ad45f41973b03781. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZB3E42200001 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c7363baf8306b2702f8f4fe558e3dba629f1fc3aa7ad23b5dd5ba0e5b0e6bc1. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZB1OS2400335 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x450bdbd9c5c3bac8218bed0a62c20425ed6dcee88dedaef4bc6c3542c54c5386. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA41S2102444 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28e3ad02f8cf07ddd7152d86b7d8d84e094e4cce363ac1198ab590abdd2d67e9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAQLY2100011 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf102bfea1982afc8f5f8a054bab02f9f97e8155fda47c0f259d35b164e799dcf. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAQLY2100008 — a six-check JSON result.
Achuz Asambe (feat. Leerosoul & MK Soul)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc97ec58e3ed51ba12d4f3574cb373767577fd81d0cfdb890bde865df6030083f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAA012400204 — a six-check JSON result.
Ewe (feat. Nobantu Vilakazi, Eltee, Rea Da Soul, Tonic Blue & Skyywalker)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x155702a25eafabe3584d5dd4a4aef8dd0b78540c6bd0b586dbb909870a59be26. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA56E2420533 — a six-check JSON result.