Sattar or Settar () is a male given name and surname of Arabic origin. Notable people with the name include: Given name Sattar (singer) (born 1949), birth name Hasan Sattar, Iranian pop and traditio
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 0x370c08771ce47789d81ef44049b51558fe2dbeeeb3a175ef423149f62a7f8a81. 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/3042114b-ce4a-4759-9ec3-012e97000b98.json and https://artists.proofprofile.net/proofs/artist/3042114b-ce4a-4759-9ec3-012e97000b98.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 0x3388251ecffefc810fa657e9f1cb57dabb9bbc9c430a48200f4f01256cbd0ae8. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T10:24:04Z), 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/USBMF7667504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb5fd76e4ac551995ccd2996a4eaf84fec3c81040720b781b2702ccf92a8b6c1. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USBMF7667508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fb534c71e3a6f5927c38b2350996809dddc1f07b91c813d7a1978b7b65ccb07. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T10:12:17Z), 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/USBMF7667511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54eead8d759d4cea9e1b78eb7ec2435d02ba777dcac661a48566f13d091f217e. 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/USPUP0811001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x099e013363e957c0b63100f17cb84260e20ca44c29fd1d87a6af0bc8be9941ca. 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/USPUP0811003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2982602298c789770e82f52e66174ab5894d4c47cca10166c541232e68c12880. 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/USPUP0810950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe56636cf2a94022a0383e19035f01eabe7909d13c332cbd8de8f87b09bef11b0. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USPUP0810951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3af0a6641e9bf967a6111770f21ae343ad66fc7285460b4617ac11c2ed41226. 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/USPUP0810952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd90f10297327278ffdd3bde0d6096a787319fa2faf4b362f8491da85bf904b9. 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/USPUP0810982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde912ee122fbd1663d968fb36ae12d558e5ee8ca31034e7f6aabb3c4b1ec00de. 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/USJ3V0911411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfec0a685f25b8c29120bc4b94c8c14d1c62f27557024257ea4d973fac822882d. 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/USPUP0811014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8cbc970946c3a981340dd5dfc67ce8c0ffc6dd3077aae646e7c60da6fea0845. 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/USPUP0810974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x436483b60b72d23b12b50bebc08cf642cb8486b1b1ee323195d819e9b8869980. 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/USPUP0811066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4c5f4d7f9622fea8d88c55e7d023e2676d02c59714a102ab242474e0b551194. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/USPUP0813155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9747383eff23212ab31dbdb45f17483149f3c47f81589be0e4402142e6949b27. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/USPUP0813165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c1adb530e3dc02b2ed3ec823784f613bb56d8df7584d0bbc4d1ebb04ae72b50. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USPUP0813145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x468daed9a621913f38b738bcd2f450fd373fa2a70c82b396bfd6f75b58fe1250. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USPUP0813146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07d805ae8c94e09041e6be2e4e8cc867e7d17d53f4e16a94d8bee7228fab4ad5. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/USPUP0813147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff07ee2671b9a436bb9b2be3df5881b0c562f2a5faef4cfaad2a99ceb287ff76. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/USPUP0813150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4742c053de0123f620441ce335e53213a4d72459bb1a369db716c22d51504063. 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/USPUP0813935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4476d1565f15d58a790135eef94512d8a84fbecb48e1ac3b650a6ee39dcf3826. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USPUP0813937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39bd5c069e5d2bd6b0e1746d7ad37e47e01d458bffdf79915180d4f135f8418c. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/USPUP0813938.
43 Golden Songs of Sattar - Persian Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf24860c8a145d1b206da9a86ef5ba0516944f01fabfbc2ab187ccae9fd5e5847. 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/USBMF0642521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c7f22d14a63aab7c5ae4376cc0792f347d716d274010805be9787774aa486b5. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/USBMF0642511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x233f336129fb04ed56b4e670c76476352c17ffab9a626c88df4d2cc262fbbd88. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USBMF0642512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae0e40207186d530f51f100e7cd1af99cdc57d6dedb540460912d5780b2d0819. 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/USBMF0642502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe39504face5af2f07441e6abe551f8b08dacc46bfd70e02940b49f553e1ab1a0. 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/USBMF0642513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x801ccd8bd550145a2ebeca8e01e64ac3a8307f9ce3bc69be9908c06fbafa0a93. 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/USBMF0642537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c5b7a6ba7e3d6f2f436db1e6f100675a55dacb1e5d7144e663cd2dcb3f63424. 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/USBMF0642509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8cd119436380506f51bd47ed5a7871f39e20c1d50256f40fbc92b0a50eba081. 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/USPUP0810698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7e8adc5d95cf0dbbc0e553d09a3857e99982bf2ecc77019015b52aa3360376b. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/USPUP0810700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6df3c08111bbdc2780567fb35c24ce3a46fc89488ebf3caddb63736667ae88f4. 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/USPUP0810701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40718a7d68f0521f4270eee0c5944a58be7c473d685b1505edbe69e33710bf64. 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/USPUP1300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dbc0d93b1ba110e7e2b91d4289089d9c70dcbeb3d8e5059a8dda30a8ede5d14. 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/USPUP1300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7290403e2e6d82627169d1a98b41c16497e9ac8b34ad00b14712f3cf3790af0a. 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/TCACJ1501336.