Parvaz Homay (; born 9 February 1980) is an Iranian composer, lyricist, vocalist, and performer specializing in Persian classical-style music. Also known by his birth name Saeid Jafarzadeh Ahmadsargur
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 0x6f0ee49267af07a25c41b6cca45e5751306e2d3e0f287cffd685bc74755b0371. 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/c1e9b273-1a17-428f-977f-03d192fd3cdb.json and https://artists.proofprofile.net/proofs/artist/c1e9b273-1a17-428f-977f-03d192fd3cdb.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 0x88c669b1f2eb5b1ed19a49baee331c125176bc547096bc54343262a1e48f6c90. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/FR10S1752469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a87cfaa33f61109af36bffaac2a06db4e0e6755d85977783e2e808023969e29. 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/FR10S1752472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7513282572c3ac10a5ac1a811558de8c7ff58725bc224424013b3197f4a2912. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T05:40:35Z), 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/FR10S1752473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0f14e7845cdf78ad41bc483fbfb1a3043849c90ce4cff925c70577796c9c6be. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:00:12Z), 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/FR10S1752474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x455fa3b8c4683138b53b162f61c66d6b84687d2c36f56836f4c5326b8a589076. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/FRX201759301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabcbebb892e2ede5c2f3acdd8ecee080b501d5317a4108a1b20b30d69ae01229. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/DEA371901407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6154348dbce5b6332b3dc5a122ba2a524f5edabeccdea34f3b5b6964942febae. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/FRX201755815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf30478e5ca7a31bb56ad059d20ea3da1854afd390b5c15ec7631ec3a71551353. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/FR10S1837049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f2b4b234889d07f6ce801c782bdbfb1cd67a1f6f39c42fbdbb62715d8cad94. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/DGA0M2372556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4d14e328077d89f63ba10422a4b3f1bae81bca1feaa535e87d20f533864ebb0. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/CAHQJ2434088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe420c18c32a187aac35a6b8ccdb05a92d25b1ef1aa2946b8891fc4d21a06e3c8. 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/USY242448989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf6029de698fd5b281cfccae1d837aec5d525927df4c10c2c7a0f78232cb42aa. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:48:50Z), 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/USY242448990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90a5d5d91c0b57b36fb50fc9aaae5892320cad5e73c5935487a5b120b3795a4e. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/USY242448991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb381aef8a0ba11fcdbf602b025106d5da0c624b0b3347071519f7962dbc54518. 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/USY242448992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9619273f3bfc67bf04724590b23c2719892a05feeddc3cab613e25bcd8e40b27. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USY242448993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb6c7c05f2706c9c99853b2b705d66045d9eff9ea53b2c9031684ff185d4932c. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:57:18Z), 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/USY242448994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb24b3e769d5049df5a8aac1d3958e4aa542f55427573e120d0ae8de4c3363a23. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:34:51Z), 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/USY242448995.