Mesach Semakula (born 13 June 1976) is a Ugandan singer, songwriter, and band director. He is revered as one of the pioneers of Uganda's modern "Band Music" genre and is a founding member of two of th
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 0x3b363796f0242c8168f652ab06047a4227fdd3390d44d7eef4c8248b853ee677. 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/b192bd98-4c47-4bc1-9587-55b7bcaa66f2.json and https://artists.proofprofile.net/proofs/artist/b192bd98-4c47-4bc1-9587-55b7bcaa66f2.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 0x062ab66b8b0f5ebf5aea9d4d1853a44bafbaf3c3205016e23d423787bc4e3100. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/QZNWR2533873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8035cbc9bef2a8d2ab75b57f525a90481d2ed5a58214a50377cac3b547ffd2f8. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/QZNWR2533874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43cf5ffb03b42864b5bfd048f9f25c7fffd429b0f41cc017e052282c1f4aca0e. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZNWS2522574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x349d70fb1e09e89ab983e36a4e1645fd8ed6871507b94a0ed0dffd34dfff1569. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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/QZNWS2522577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2ec0559a5ee9327a3bc6bb9a7418c60ee48174057c503293688eddda9388d39. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWS2522578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdd52071dc22f8ff7fb40188dd3a2bf1f899ca66c867b705ff6e896abcda088d. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES62117867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f6cced18defa20ad77533b65efbbe21fd8b6ac5ec5507d072647640697a1c71. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/QZES62117870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41ccef53bf71bf947043bf794e9e6f4f5a35d10be1a86017157025552013c5a2. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZES62117871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8151aa5b44dbbc98d49cbf2ccc06c253e7554f3260639883ad768b09e52b88fb. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZES62117874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f5cc85b98317bbaa9c713048dbd3fe38f1a3cc75f5997fb0a49a949348a169e. 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/QZES62117876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fce7d7048dfeeab2a829af0c038d2a14de9265002649b73e4d66c5370062acb. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZES62123794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07f90a28c4ac99c08b1bede7264d7efce310e46a938677909733ab5effed5bfb. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QZNWV2315861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8530c141e93f319f88be564a0c370aea7f43c355b80750a2219a81eedd2926c. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QZNWV2312679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0321e9521ff8b45f20d28dcfaecc8169473d72e67b03fb665e6a8fca9eb0880c. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/QZNWV2312688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x163a49d460109b97c6878efa35ac7987ff6e783ae65ed361e24fef284ba2a766. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZTAX2388147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50a6db148a0653ad5f085198a993451076b736aedab1bce272376e5ada2b5dde. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAX2388150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeebf461d2ef962d2bb7d84caf8a338203fad2c4345a7e3f8fe2244b8f026bd51. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/QZTAX2340316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6cd4c8a6321af1f7aa1bf3c37ef9357482ec01c40a4fdce1bb41c9c6f0a3edb. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/QZTAX2340318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf242ac67c45d472ffe70cdee7e6d461fae869033ec1cc8485e4f091a3d55b90b. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZTB32423702.