Omar Ahmed Abdelkader (born 29 December 1979) is an amateur boxer from Kenya, who is also known as Omar Ahmed, Ahmed Abdelkader, or Ahmed Rajab Omari. He is best known for winning the gold medal in 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45b1b943e5dc7bb462fd33b25a99a1b078a784d9cccc4173fb874e6aff87b3ca. 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/694a8c60-9a6e-4ec7-864d-296ba184165e.json and https://artists.proofprofile.net/proofs/artist/694a8c60-9a6e-4ec7-864d-296ba184165e.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 0x7f3ad81b260c1d7d1234baded1bfe4f68c9c526c941b9134136b0926a538a5d8. 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/EGWKS2168001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf600f4e21799ad97e3d33e1dcc980f3218d0bc802643aa8121ff02ed75f541e5. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QM7282376053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa86f494fa527879cdad8ae62b500e95d4735ca7190c3ab33a8e8439db8edb359. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T01:01:17Z), 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/QM4TX2234382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21a4525504be9ad809f155dc7ee3ae0eeebdff80d322b5eb44eb6930826dc086. 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/QM7282380204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb79356efc5dbc2b5dd22af7e6f2f0d9727207652cee4926a06d672e83011d2d3. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QM6MZ2325216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ec59c030d6fbad7c532f285cda7ac667a511a345478758e8f4f8b1e09c15892. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/QM6MZ2326131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef545b4e70f39122c37c56f6b9dac27c82040ba9afcf9616ead2723197d0f4ee. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/QM6MZ2325508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59bd2556aa193dd6c7abfa3832ed09dc0af1df2149c8dc5386bad3eba58b41cd. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QM6N22335015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74a22036ba89a38ec581e9459f626dc306241ab299f2797653292b80f3618cff. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/QM7282367018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90e361a15724d1b8aa3fb8f62eb6b0e6eefa08741f3ec56cb55ccb14e420e59e. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:21:34Z), 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/QMFMF2301985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bc7010336f6646818f937f3d981c6fce2a120b7f9e263debc408d29b2ab0adc. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:47:25Z), 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/QM4TX2457178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x117edccb5876e26504ac5f6013ea665cfa7841fcfd15824374871113ddf7070b. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QM4TW2574720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2eb3ae46fc0e045b254b51c2042bb5d6ae1eab12132a28d9ab105315a6e4484. 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/QM4TX2584970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8ed5f40e22cadbcb24a7e0eba689f3c401255b1d194006a08b871f09a082c64. 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/QMBZ92500596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13b4fce7c27b8415912029ce1ae517d420663131d4835e0bb31ec60acd6846eb. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QMDA72562697.