Amr Mostafa Mohamed Alsayed Abulmagd (; born 31 December 1979), better known as Amr Mostafa (), is an Egyptian singer and composer. He has composed several hit songs for artists like Amr Diab, Mohamed
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 0x57cc0f9e273dcdbb82f0923be399ba878363bc71809232a416f01d455f76eb05. 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/bddd58a8-d705-4d25-808a-3b01a5ee8438.json and https://artists.proofprofile.net/proofs/artist/bddd58a8-d705-4d25-808a-3b01a5ee8438.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 0xac8f74538c8b96a527f29a591a08c043fd3d676f74c868ca16224a888edf6d5d. 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/QZ3TZ0700031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc439fdf1ab8e4847e5c2a88374fc283d7f781a752e8da97d11c3b821c65bc865. 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/QZ3TZ0700032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a2dcfd81cbf8fbf1f522ec1a731048155cbad2892aed5a0b740a3c6d72166a0. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZ3TZ0700034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7283ee817294b570f7cb0243eec3d4050dee4efb55e5ad8b00301888650537b6. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZ3TZ0700039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d779d01093248aaf21c4d420a346657cba511999dac388c8f261f4cbab786a9. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/LBA040701901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2686420112e37d1bc28688c824a1a6bc2bda912ae0e42eb68f898e96e24f721a. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/LBA040701902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8718875e825214c286a05839e66235afef3d585f813f839841648acf7683ef60. 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/LBA040701906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8163ae693216276bcea1ac820a1ef1d37a1aefdd314cceabf86070ec0fc44712. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/LBA040701908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1002822bad235f6847aa5e3690a17c1d07b5eb2fdfd8cd109077feeb64ed1eb5. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/LBA040701910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05e187a5bc4a8b70344a1203d5b80550e779bab7c1eed60b4c9cc348d6d9bed2. 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/EGA1K1914619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x381e4ff89040f534f9e0a67a205e1ed578af6438ce95a2166ff0b727135bf622. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/EGA1K1914620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63bd663a2caaf23a4cde96f623dfd307f741431eaef9d52a12a0a74d135636ca. 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/EGA1K1914621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c8db369d2fb56d7dfd157c930897a11ca094f4474aaeda4446ffac031d5e19. Chain 2 (Bitcoin): anchored in block 957552 (2026-07-11T10:04:42Z), 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/EGA1K2100278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6823c361932843c5435747d017d8d47cc8d324a265b7fd4fa598845b33e8ea43. 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/QZHN72141315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3ac8c460bccf4b74d7114f470dc74a1cf1eb562a35361fc8590eee9c2f0ba3a. Chain 2 (Bitcoin): anchored in block 957552 (2026-07-11T10:04:42Z), 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/QZMEM2227905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadc2ddf7df7560d636fcf6f0244c5a215586493690f170b9d8ed85220265e1a0. 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/QZMEP2229745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba33717762c5bd07666ce4528500d47bc3ae89d2fed9797a62a46d97d5880def. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QZFZ32384673.
Amr Mostafa - Malosh Zay | 2023 | عمرو مصطفى -مالوش زي
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0be1b84778c52f0bf9d9e56f10c5a9cb81e3da0182000c7c1a96c216a2c9ce1. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QZHNB2327908.
Amr Mostafa - Hahkilak Oddam | 2023 | عمرو مصطفى - هحكيلك قدام
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b6335014534eeafc4b5f46f5cd084c1f1c772da86ab850c12ec58c7c584c868. 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/QZHNB2327912.
Amr Mostafa - Aysheen Belsora | 2023 | عمرو مصطفى - عايشين بالصورة
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b2d7fa106fce8b50270241f13cfa12acce4ce3f3d2ef4e695f6cf3330dd398e. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/QZHNB2327913.
Mai Farouk - Aftkerlak Aih | 2023 | مي فاروق - افتكرلك ايه
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1b3eec3fada163f104c6219f5f7d7e68dba8c8ff46dbd6ff2d44a3a9475b8af. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/QZTAX2311365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73828fec445b1f75fcf9aa260651b6ed308cf57dac069ab7c6af73aba19de243. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/QZES62468795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1698ab0758e8243caa3c1f2b4963dc84b69b76aa4d2e5f11eaf0b6f65b012115. 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/DGA072484181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52368ff2b928460f438ccc41bc4a98a98ef983e543ff2aeac132ba994b018caf. Chain 2 (Bitcoin): anchored in block 958752 (2026-07-19T16:00:28Z), 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/QZTAU2433584.
Aayesheen - Amr Mostafa عايشين - عمرو مصطفي
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeb5c505f9db7a7683691e25c9e6ae53483f6c9e320e11bc810076e46f0d3329. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/QZHN42501974.