Hassan Shamaizadeh (, also Romanized as Hasan-é Šamâ'izâde; born January 15, 1943, in Isfahan) is an Iranian pop music composer, singer, and instrumentalist. Initially, Shamaizadeh played the clarine
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 0x939f0722d6fcedd2fc345ed205922839b0be7e50af89655333f31e78f63a4550. 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/133cd420-5b08-447e-8ef6-76e99bc2e343.json and https://artists.proofprofile.net/proofs/artist/133cd420-5b08-447e-8ef6-76e99bc2e343.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 0xc8c19b3f0a61cf80f4c29c1aefd97d44af04ea5dbc560e65483f71d100743e01. 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/USPUP1200159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41216594b09eea9fadf2a78bf5c957e9923ed60dd2863fd6daa915706c42fb70. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/USPUP0812465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ad3033c8ce51eb45684929a1b716bc171fb514209206b2aed48a8cff65969e. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USPUP0812249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd240db31d1bfb137e27870cf5cd4348a5c4e4492cbb9262021ae16ed45adc345. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/USPUP0812250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf75f09aadb2bc50d7a22e0dea3dd79fcb3c39ec4f3c9a471bc1e03f7335f217. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:57:01Z), 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/USPUP0812623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c9eb616920383dea03cbaa4352f85e0355540770e0a523c93402f9082209fcd. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USPUP0812625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d97cbde10a63c56ed679ef799ab67f9711b008ec119fc0edc80a3057a99b197. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/USPUP0812629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d5c48240cca485dc9847c7f9c98429a985e1013b595fe3988ad1834ba3511c8. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/USJ3V0908465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x799cc466dda2780950d3e854524dfe12364390a35c438b6b9ecb386ec9bb6417. 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/USJ3V0908475.
Akharin Savar (The Last Rider) - Persian Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27eb3461d2592fbe17903d6e69419454c2e8b5172bcc1998f6ca688bdb700091. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USBMF9721693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c9e674321cbe86a7c78f29e15770ba04b986521a1cc48f65ac1f16fe91e5967. Chain 2 (Bitcoin): anchored in block 958697 (2026-07-19T07:58:24Z), 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/USBMF9721697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f9ae87d7c3f60b6d5dc8ac5d8a8879d725f9a4b94746e2838d5bce6de3874cf. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/USBMF9721698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a409e21322e3393700772ae5a82f786a765856c58244c4fb3e4afd99de88dfd. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/USJ3V0929989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceb777325ce3f0f1aef01dba46b7ffa3ec839d760e90faba7fe9aa60f32146a9. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USBMF9924355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3619db17f90842ec1377f8f8aa5daf637dce0565bd659a8a85d92696696fe0d0. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USBMF0124673.
Dooshizeh Khanoom (Miss) - Persian Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4524c35ca593a62b8707835bc28a0269b12696e40697d89de2b5e60226f33cb5. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USBMF0600501.
Shamaeezadeh Golden Songs, Vol 1 - Persian Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b4113f5ba4bfdf7225b8db5cc6128b86aba2f6219f78c4f9de738da01887c03. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USBMF0642901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82ea531c5d30c8970d3282c1a744d05affc23dff1c32e4d2c243f25c21e7a74a. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USBMF0642902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2384deab5a3936ae803ca6219d03b045aace07f7002a9ab33088ea0c1a6f28c7. 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/USBMF0642922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66710e6dca483955682c0a03b58d599dae16389ce114c83a6c00e01a01a3375d. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/USBMF0642929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b5e33b2cdc0e55cf42ca9b6e3af7fd0485a3b6e77a4d4a8aac086a0e4e52f84. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USBMF0642931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fae198e92fb458a2ca24b09c029f29e61f6ab7fc6d3326411e23d589094971a. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:57:34Z), 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/USBMF0642908.
Medley: Dokhtare Mardom, Ashegham, Halla Halla, Bishtaro Bishtar, Dokhtare Koli,...
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7397f061cd4ed9f8d20067ab13f44c03975f04ea8ada64b00f1d21b1d5bdb73. 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/USBMF0642935.
Sound of River (Instrumental) - Persian Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc7a04c25b8c133bfe82de7ef1786d95a93a02c36764e78c1ff6bf0f11f3684b. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZWDW2528505.