Maurice Kirya (born 4 November 1984) is a Ugandan singer, songwriter, actor, and humanitarian. He is the founder and director of the Sound Cup Coffee, a coffee brand that started as a restaurant in 20
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 0x8eae63a0b484fd76795c666db93ad686f130704abf2245f290ae72b37017586a. 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/4b4e971d-0170-4cc2-852a-f59dc7f6bc55.json and https://artists.proofprofile.net/proofs/artist/4b4e971d-0170-4cc2-852a-f59dc7f6bc55.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6705d0bcf2bd738e1ca8909949135701fb32fd28c5f49e6010d5a15c9b88e54. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USCGH1017613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb92325527fbc1dfe7a05ef165b9ab4157caaf00c56ae6eaa7a1868e7ce05ce96. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/UGA051200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd06dacc21221d879055a19f07df589441cc1f3e0d4474f5191d7ccfa3cb4c8a3. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:42:56Z), 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/UGA051200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc96a8c164990a70a103bf8538baca698e3a0f6353e289bc2f95acf2dce27787a. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/UGA051500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc47cbdb53e9dbb888802dc28a73ae7f54f2fb62d330c6467acdd97755b31979e. 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/UGA051500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa644ad973a73bb44d5d0343ea7911dde91b20f4636df90dd403f0bdbaea54f14. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/UGA051500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33e9c00191d3e031fe9858fea2514019d786fc304b233b4a69319dbea43f55e4. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/UGA051700006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd88d17984f15301e107e32c92385066ec2e4ce1634fca70ccdf62a69012f9d80. 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/UGA052200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb49c12e7049494f164a1058a394c27c1abee3da44e63feb8e44bc40ea0e378f7. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QM6P42220737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7918cb382562a105ab76ae6284b73fd0d2e0d2a066a769756b38b207c7c8f22e. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QMBZ92336851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d8c1afb6b13366699fcb63bbdde854c3a863403c476fedb435090aa9f844d39. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/QM4TW2582751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf74f805626986db9a7aa1d6cb9f4b4d7bdfdc5829cb742e61717971fe46b0269. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:43:46Z), 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/QMDA62586597.