Sadegh, or accented Sādegh (in ), is an Iranian name and variant of Sadeq. Given name Sadegh Aliakbarzadeh (1932-2007), Iranian boxer Sadegh Amirazizi (1905–1992), Iranian army general and politician
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 0x14ef038a55721765cda645df62133f9f634d2ab009002edd10ffa9e5604c7d13. 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/a2756b25-3a54-46ee-83fa-026086b58192.json and https://artists.proofprofile.net/proofs/artist/a2756b25-3a54-46ee-83fa-026086b58192.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 0x92dd25992a9f5dcce7a05cf4f6d3f63b41c535b0081c6a4621b19abf038d9a43. 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/GBSMU9247666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983b677002afeb187d3f73677274547a7f2463c5b366da93ace483384e8381ca. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/GBSMU8959056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47688c140ce457f9695fa9c79b2c6625bb90c5f7cfaed6597e5a5b77a62539a0. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/GBSMU8959057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaddcd2cc7e3efb7ee9d37c5e98708f5cbddefde494a7c4b53c1a59098521b41. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/GBSMU8961348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4a2a0cac5ddc5951d5b1685ca5955bb61b9a6fce6a8b4f5356b351bafad0cd3. 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/GBSMU8961351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3609f2cb202d7fd0c9936c3caaf85d4288125ba06f9cecf4e77d86c25e0ea7d0. 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/GBSMU8961352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49986bc5db1702b1b9336162a55bbfed987b55476d04b08a39ed1bf2277c78c3. 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/GBSMU8961380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb9843587891be90e00673d176e1bda9ec78944b42c7b0f0b091119b6f5e28c9. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/GBSMU8961382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe92cb83b937bd3115969afc33b8421fa02bc4985eac3bd27f48ae5c0169820d7. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/USHM81605222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86a0336b01fc8f1e51ad2732ff417f197aa9cfe544d84ad505c103593ea998c5. 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/USHM81605223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf634786832fc8fa29f780755e7b8d6c092dc09955226975b7d7e078f334a71a6. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/GBSMU8962724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ff58ec2a0fdf276768387d9103d81b8d49a2ae552f8c05d62fe4c874ac68783. 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/USHM91846979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c8a8e484194f4f383cb088d0ef5e75d09038c0a74376ce1b283b37687c8f041. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T19:59:31Z), 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/GX5MY2257679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e6c8c2516ce37d0fa5cd45fadc53621f016e72c49210ad8c5be021bb3f7ae57. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:36:46Z), 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/USHM91989027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x435ebc8fe3405b9c65b0ae0c037180109a6fc299c72f22f1df295873b2fd27e6. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/USCGH2085341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc58456d79f61a8177cccbfd7c9dd08cb1ccda24f679cc158cfb3d8a43d50f53. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/GBSMU9607271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfa69711cf0b8ec1270a32b2c4acdfb92dc74382563bf51a523d0f67d5b9fc62. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/GX5MX2311571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb35e0285fc0790b0a3dda191a473227aba32d4054e7ff0399d1867d81d6e445. 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/GX5MX2372612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90890dc38a0566b72bd609816b0e785f682d7ac011f7c3035c084c9e4d44f789. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/GX5MX2346469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x768a44eaa000bb22557f65ebf4d7a5d90ce505c41d84db99bff1b32619aeb2bb. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/GX5MX2366525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc53462e3a5b1881c165dfd69c43fa0799417101a2e82905332d484729849939a. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T23:50:14Z), 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/GX5MX2335467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a8e871cd95df519c0510ab85b02ca8655234121aad6652bb03685c64008a9e8. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBSMU8515706.