Osinachi Kalu Okoro Egbu , known professionally as Sinach, (born 30 March 1972) is a Nigerian singer, songwriter and senior worship leader, serving in this capacity for over 30 years. She is the first
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 0x3f9b5b50d0302e3651b35baaa192fcfb881966b98b52a6e93ae81ed592307327. 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/24597747-f46c-432f-862c-b1059bebb692.json and https://artists.proofprofile.net/proofs/artist/24597747-f46c-432f-862c-b1059bebb692.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Name of Jesus: Sinach Live in Concert
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 0x18a64638e3f4a304a9fe173c9ebf001880afca0335b31db063d11199b6a7ba04. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/NLHR52154548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfea2a76b3eeaa6e614adf6701327596001ad85b6a22119f472a97520d7c44de9. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/TCAIB2439017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b963852e3c400bc062b20cffe94f164c300868e4cc83cec0da6fb62a32522cf. 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/TCACM1634637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab1b7e6f5a4e57a4f2de50ab63b4f5b61cc3caa158bbeb9bcedf63ff38224cd9. 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/TCAGJ2218901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9b18de83fce301f38c4219d7a2dc775f8d7fb3e010ee78c155fdc08ee3fa07a. 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/TCAGJ2218870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a062561dcae257c05a6554de1cb1b3355faf0f8ee2977cba678cf0f2601ee7b. 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/USCGH1849804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb03b5b57d197824110de320490d9159e244a79a3703d495d948f1f01b7938838. 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/TCAFM2159511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x779eb22dda5d80be48ef7e18749dd4e1e3d34362183f5614b543f71166dd4033. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/TCABI1253223.