Maua Sama (born August 27, 1990) is a Tanzanian singer and songwriter. She is known for her song "Iokote" (2018). Early life and education Maua Sama was born on August 27, 1990, in Tanzania. She
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 0x14ea2799eb78bdfa33d8ee2b3dd0f3ad618a2a09de30578fa6ab964e57da989f. 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/6d0e10e2-7039-4a5b-8fe4-a47246d0af14.json and https://artists.proofprofile.net/proofs/artist/6d0e10e2-7039-4a5b-8fe4-a47246d0af14.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 0x2c5f56299cc12257b431a46aef6a41768713b9350b13a5aae8f4bb351115e680. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/FR59R1930424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x279da4f222a0cf7450a59e291a7bd892bfee312dd0ee8ad63d90592b47e84d20. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/USHM81992550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x018186e61d8aa12f6c122fae35470bfd65aac9c6144c7cadc1ec8407fae4a603. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/ZA41S1929914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x074305983b7d2f75706dbce46adf2ec87cd75ddb1c9cffb1371607a522f95552. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/FRX201911405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d1c0b9b6ddd1323765708213b78b590b2c52477bbb340ec4baa26440adc6f35. 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/ZA41S2101933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfea7cba0ad5ad378980faac81f2f87feff8d4cf65317acd049dbd1265de4d87. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/ZA41S2204144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x795ee3b27ab5038172c070a988ac9d997557028ff2bad44f597d66428ab3fc7a. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/ZA41S2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ae1271bd09955599850c0850312de4c15bdb796545a7b0ac1e7f41a2f5a737b. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/ZA41S2301054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c272200e17f01ca30ea75031576a4d433bbbbc4e9e6ec7cabd022299b354acc. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/ZA41S2301309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4354895fca4d8cb9062dce3433d9e0aa8fe1d5cf89bcebe502a0bc3e2365d946. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/ZA41S2304801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32b024c2903346a1e8dee9461f3cc7e5f9c6bad103ff29ddc9584f92c8532817. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/ZA40S2400037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29458d9c05d4630be77226277df7aa3449c9286e347d57d3b5249cc4a6936faa. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/ZA40S2402118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x804bb15b46fa111f2811f8e01a1dcd06828077a1b6f3db01eac20e91a6a61d3a. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/ZA41S2021058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e6e54cbd22a44bfd4876f3c5a302626c643ba716052fb0f783c0435df1ea2b4. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZNJY2104973.