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 0x93f3e2606405a6f66ff018f203cdce354c0a2a960a2d33fc3d06a031d1818168. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1c5b8d83-f779-4f56-a149-6f69c88ee073.json and https://artists.proofprofile.net/proofs/artist/1c5b8d83-f779-4f56-a149-6f69c88ee073.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Imali iKhona (feat. Mellow & Sleazy, Madumane & Uncool MC)
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 0xf258bc9f2361adb58583658e6e3bd64525aa67672a90c885eb8fccf5465f9a37. 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/ZB1OS2300220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf258bc9f2361adb58583658e6e3bd64525aa67672a90c885eb8fccf5465f9a37. 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/ZB1OS2300220.
Yebo Baba (feat. Madumane, Mellow & Sleazy, Uncool MC, Ricky Lenyora & Sir Trill)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e932baadf8152aa8eab71266cfa013f7f5931cf3f2f841e438da03c81c0a3cd. 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/ZBN532300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e932baadf8152aa8eab71266cfa013f7f5931cf3f2f841e438da03c81c0a3cd. 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/ZBN532300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x210006596e2e958dee98a705efe431e174f5f0245f110e4789778e08c686bc85. 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/ZA7RV2200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8995e624be887157353192669922addc12483251dc296f2c8bbaaf26bb1eefd6. 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/ZAC012300702.
Ke Nakwela (feat. Dj Maphorisa, Uncool MC, Ricky Lenyora & Gipa Entertainment)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6040cc35db9e79fc863ff3e17cc97895ab2b249c586debbebdd21f111efeac4b. 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/ZB1OS2400366.
Kwenzakalan (feat. Uncool MC, Scotts Maphuma, LeeMcKrazy & Tumilemang)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f037854e97d3bca7d2e63ed52baf30f5734e0ffd983d3d40617f216cb4ae6a2. 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/ZB1OS2400369.
Bad Decision (feat. Uncool MC & Mellow & Sleazy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba8f571ba8589fcd346aa0f81d53d451c11cb327ea79eec619c1fd160b1bc2d0. 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/ZA4BZ2400081.
Bula Nthweo (feat. Jelly Babie, Xduppy, Uncool MC & Ricky Lenyora)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03bb69731e635ce459e9d5d7996ad8b22b2e6ef2b9210706d282bdc8f6cf77c7. 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/ZAA012300331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x067cb4bb4db7f9a581d1c2d6fce5671bf7ac274bad6bc49bac4b098329b6ebc9. 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/ZA56E2419809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d47bd6404a49aa2eba2a7246448b9d4135ae336963f910473c64556aa8a920c. 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/ZAUM72400999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f41d0c5ccd708a16031bf1e2de16b41720e475c7013cdc2ae0a54d292c00ce8. 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/ZAUM72401001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05e9fdb24deff7f9cb8c86d6c269355833dbc46cd5c96343d25adf687ee8f687. 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/ZAC012400364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebd7dccf7d2db9c52e0c6e25d2144fd8bf0dded476feef92ed7e4f88f577b848. 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/ZA6EE2000080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54fa9201b62f720b034743aaec1b0c0c6531f875f4306f338d7e741e260feadb. 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/USA2P2442249.
Maqondisa (feat. Scotts Maphuma & Uncool MC)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f8fc7a4fb751ab7bc46832c4bbd72485d397611db4f6678776f00033831c663. 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/ZA34K2402509.