Rich Amevor (born 6 September 1997), known professionally as thatboykwame (and previously as Kwame), is an Australian rapper and record producer. He has released four EPs: Lesson Learned in 2017, Endl
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 0x02a50df74b7969a303c58994fbcbcfd619c9533926e40d1ab2d8e97d8fae14e7. 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/638ffe8c-b24d-47fa-b4cd-1c4f1ca6e893.json and https://artists.proofprofile.net/proofs/artist/638ffe8c-b24d-47fa-b4cd-1c4f1ca6e893.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 0x28071c770781777011056ae6234644745ba9e29db5e00f4eb46a0301c95cfba5. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QM4DW1751996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71f4c896969fe52b820f38e85a4fb9b44cb5c180ee3bdfad0ba05f5831f6b0a2. 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/AUBEC1718516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71f4c896969fe52b820f38e85a4fb9b44cb5c180ee3bdfad0ba05f5831f6b0a2. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/AUBEC1718516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe156d458231679193195949d2939356902b1916ed9d5d6870844607c9fb592e4. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T11:47:29Z), 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/AUBEC1890018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6d0de7c573931ba11de20e7cc3cb59c6d791cee5e361f5ba48f3733264eb9ac. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/AUUM71900945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09b5524ff9c1598076708f1b1a63bc7652714df5ed245079a0b11a9caa5c0540. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/AUUM72000814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6d0de7c573931ba11de20e7cc3cb59c6d791cee5e361f5ba48f3733264eb9ac. 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/AUUM71900945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64bb1411dca3695016e41bceb34362602f993309b9ae5c20434748b3161c70b4. 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/AUUM71900830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2eb6467c4f6a4632a1b95dc257b6b8448ba5ebf239c28eb0f1d7e0952bfe430. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/AUUM72000815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09b5524ff9c1598076708f1b1a63bc7652714df5ed245079a0b11a9caa5c0540. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/AUUM72000814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4160616842fbc705a0aa73bbfe3416e2e03e386358bb3877f2daed1275cce623. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/AUUM72000816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02897377a1571096dd5d3c9a6523909785dd63c8352ec06ab057a501cc9fca8a. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/AUUM72000817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fc5ed3f5871c2a1483ccf48ec0b5f957c77937d9bec99109f4e94d1177fe436. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/NL8RL2326607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaff20d63be02e32292a7a71c1d01b66a13820eddf6abcd99d75fce55724fc5d3. 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/AUBEC2441369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe3054e2f81dec3bc016b8bb4a97c871c6f8d32a8a0123606b3699379d53abf8. 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/AUBM02300035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafa6bcdf01064b43da7f985f8e8cfaaddbac03553802f075342dcd4bc1878652. 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/USUS12300348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3d8f2326f77ee2956bfdfb7faf45782d1d098388c1802f98cceddb82abd91d2. 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/QM7281997910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da10c1c0d240d2a3922f623c768bcd4b5e26e7298d57e07f0e7c0e8ab4407b9. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/AUNV01800205.
Celebrating 50 years of Hip Hop - Australia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eff1c8b04fbaf9a03ddf2d392754f83aa372756dfddaf2e75b9d3559ba80644. 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/AUUM72000054.