Izadi (, lit. "of God") is an Iranian surname which can also be found in the Iranian diaspora. Notable people with the surname include: Mehdi Izadi (born 1998), Iranian football player Mohsen Izadi
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 0x12d2e4d0bf5e40b349f256f09cafc4b1ff7fb603cf67a4e057cd05a4b9732d8c. 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/f4728776-cc0a-4b73-a57a-29779783cd70.json and https://artists.proofprofile.net/proofs/artist/f4728776-cc0a-4b73-a57a-29779783cd70.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 0xfb8dd3e8979aa0fcf8539b22e358dca03a23d505e7a9cd5b65d24d23e66f839a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/CA5KR2352793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa286189d95aad44769224ee842711e6156ee2048522f0b7fb9049c0d3c821836. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/CA5KR2374121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbc853c9d39f86080e5a467f8fddf339ff830d5f59a510474a8e3e2e780751d9. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/CA5KR2374122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1576b5cb363e16f63cdb190c1b55b4cfca646322db9dd7f243392c1c0b2ae91. Chain 2 (Bitcoin): anchored in block 958911 (2026-07-20T16:46:31Z), 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/CA5KR2374123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6334561bf0a7f42400355aa6e89a341c7d86d0d786ff53f231557720311d758f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/CA5KR2446521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cdf032a7dde697b8777b58262b2aa0dbea2361eb3d1c2a00e081c23d7530057. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/CA5KR2437470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda0c331ebdb31a7707f72e313936713b81f51c29f8a9e3616d9808a7db71c913. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/CA5KR2446522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5234ba405f41c012540036db45f6d4ccd31fbcc76a5437fa450d775a4359601c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/CA5KR2446523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24fa43f6ead7b8c67fbdaa036a0000f0d958b490f51ed9dc3f62f0177ae2375d. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/CA5KR2446524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac84d525f75ff9ed102e28d62e55d9e2d043883ffaddb7cd06231aa31f513cda. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/AUK3B2500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6eb2bb6ac0cc4c7d09aa38a3bb9259b2df03b8ba6e192280ce4d415d8267532. 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/AUK3B2500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6c331a7573c6a0ca2dc60d4c4fbf9aa0016baeab64d6e989a0d8d2564b43af5. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/AUK3B2500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b702632e061972326a3c9f62007e029123c5e9180e942dbd23c87e4ab46a291. Chain 2 (Bitcoin): anchored in block 957895 (2026-07-13T18:41:29Z), 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/CA5KR2518104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdff6148e76020aecba0ddabcbc18e05ba80fc5dccce8bfee58a9d5a34069460. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/CA5KR2342588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cdf032a7dde697b8777b58262b2aa0dbea2361eb3d1c2a00e081c23d7530057. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/CA5KR2437470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59e3e4c87917cb5926800287ee38aa0981f690abfb52a33769f5dfb6e534a0a5. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/CA5KR2479595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50c3bca8664a26a2cee25c0b04d0fdbdfa7c3aca59ca72d4e2a5f18da30cd55b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GB7YL2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeac8cd16bd3c19ce8f54a7cfcd5b86a1f64d82b9f6e031e7543d9f2334e10f6. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/CA5KR2420279.