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 0x62125ad4f8bbe3c4ad74b5105c345a6b0597685915b351521f1782e8a8d5f746. 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/7b8e1396-9487-4a23-91b1-bdf485fcdb51.json and https://artists.proofprofile.net/proofs/artist/7b8e1396-9487-4a23-91b1-bdf485fcdb51.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 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 0x77e5d35bbdbf5679b9e439137d08ba565dc2500ab144dc094ff660d564881503. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ZA82Y2100197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3659ae536e30a183789047704a8959876cc0f71fd97f2568f6cece956709045. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/ZA82Y2100201.
O Nwa Nna (feat. Lil Mery and CK the Dj)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72983a3f83dea29b94498abf816697b442c3d0243e236c1a119dd4102c90b729. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/ZA82Y2100205.
Wampona Naah (feat. Makhadzi and Flora Ritsuri)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8753b998d876da3e00a970d4926bb617f7830ae4c0fe4288c8eee833de6a5fdb. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/ZA82Y2200075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf52456e0507d8b96016340bf42b7ee015cbdaf8f288545534635a450b8776dc2. 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/ZA82Y2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04f4a8926a80ea603ab207395743abdd654632cba9a287149e48b82075a78f11. 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/ZA82Y2300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94f187cd022ef3d4e1dc95424cfefb9f63bebfc216e32a097335bbc12927895f. 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/ZA82Y2300022.
Bopapa Matome (feat. Pat Medina, Shandesh, Emily Mohobs)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x734ba425c8fcf73288e54bd0e18ff0859628ced5c20bb4a08204e7d58695e336. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/ZA56E2306404.
Batswadi Banshile (feat. Dalom Kids & CK the DJ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68b38a68b494091c87c2d826219beb28772baf73bf23147758a140995783257c. 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/ZA7VV2410014.
U Randza Mani (feat. Makhadzi & Mr Brown)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeb801dcd39af6ca14d7fef54ee201797c708f7901f155d2b111965c41805087. 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/ZA7VV2410015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34b7f1d9c8e9f325a8b8c770a58191897a6988f9f7db9a89445f3317ac25b915. 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/ZA7VV2410016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a72b3f2eece9dd471fd3170d95499c9a64f095b231f62e5286cc1c5e1b50d2d. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/ZA7VV2410017.
Siyazenzela (feat. Dalom Kids & Tman Xpress)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ef194569ba8e4971e8ed1620fbfc6bde66db290b9a566a17fa50dc4af487df. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ZA7VV2410018.
Makarapa (feat. Makhadzi, Shebeshxit & Naqua SA)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44a2390cfb750b3eeb2ca96501b29c2d2c13bb3484f8f8c3eb1131fbb5eac567. 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/ZA7VV2410019.
Banaka Nako Ea Me E Haufi (feat. Solly Moholo) [Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2f1c26ca6e66feb27d88976a8e1b17d3b7d7777d077e7a0fe4eba11975cbbd2. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/QMFME2521264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d7e2724289e61b1afeeb13c7f6654ff18870411c69f5dad64e86302abd5de0. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA41S2102115.
Sabela (feat. Soul Kulture and Prince Benza)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d3e5ce9135c1a91d63675fefebb93c62ba9f7aa7b8f211db5123a72590d4edc. 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/ZA56E2000183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb12eebcbc87b536c59c23f80a819e036eb96024b2247195f9d6ffcd55c37df08. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA82Y2000101.
Ithemba Lam (feat. Mpumi & Prince Benza)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a20b1e1f9078ca22157b1f088743c958960618bc1a7ad48a7f69ee509d32faf. 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/ZA82Y2000215.
Khaya Lam (feat. Master KG, Prince Benza)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9381b79a9fb4a459f66390a643e6d5fb3b3241e867967313154939104ef67ea8. 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/ZA56E2002736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ecf4b31db1408e1aa1fd0f2fee21519b8e2632f10b8e6f89e0d516438882ddf. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA82Y2100040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc72d4e568e446cf3139a3d2e387d837a131c5000a2192bc7834df8f2e1c1b48f. 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/ZA82Y2000190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6adc9533cbb58b17f7f4deca8146dccc900aa63b2959e73144a1d733856ed0cd. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/ZA82Y2100240.
Rain On Me (feat. Team Mosha, Prince Benza and Master Chuza)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceb139354fa752d53f37a84400358aa39641b917b986156e538792ac7bbe7057. 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/ZA82Y2100241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa431c4551dcf6f7eb9f616e20dd6e1e90e79ae1e41d9a403bf6e7ba2b6d0fc3. 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/ZA82Y2100087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd69bc5cca5fc2b95e89aa14a44f555c6ae62ad73220df67b321799f4cc7481f6. 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/ZA82Y2100143.
Lepara Ke Nna (feat. Prince Benza & Max Man)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26b263e9a2653f4e112da6b7427520f741189655b321a14e981455c2f05a65a8. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA82Y2000187.
O Fihlile (feat. Prince Benza & Brian Msemza)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf29e8071688ac1be5cdc108fa76ff7f6d3c604ca1b73f66a5905341d07f9873. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/ZA82Y2000188.
Wagana Nna (feat. 2point1, Gusba Banana and Prince Benza)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e6ebb0f09fc3a9a62d695773168a349b546f92ae1ed50127033989a2f31fbb1. 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/ZA56E2304303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0110d2d2e8b682dbd1713aa85c834b862f21f6c077534ff6854d1c1be9125c83. 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/ZA56E2304309.