Martik Qarah Khanian (; born 17 July 1949), known mononymously as Martik (Armenian: Մարտիկ), is an Iranian Armenian singer, composer, arranger, and guitarist based in the United States. Martik has per
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 0x69ef1a6c7e986e68fe63e6301ff07a92fc3a345be7ed1c6a2280b85c049e6e3c. 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/943db894-0262-4eee-96dc-97035a4a48b4.json and https://artists.proofprofile.net/proofs/artist/943db894-0262-4eee-96dc-97035a4a48b4.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 0x79c84051c3970f5354e1c0e55c9bc51bb7be38dfc8087683d38bef58ff83f9a6. 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/USPUP0811729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe179091feba1bdda4fc9ef9a5e65c3d1ae91646657b0276cb80468739aa403d5. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USPUP0811734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fe1f5711fdff5e83abf188393b85666461c41c017015fb7c858d85a3f4ed8b4. 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/USBMF9220504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd86d4d73c5af585b538a33786794ec75ac84ceec8423c8965e05a161c932499. 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/USBMF9320301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x581f30592de9bfae4e357219c5c55312498a72b657da6f667e7af45faffc13b5. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/USBMF9320303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5bdd71b6ff0abe38e27ea8e64fe5b38ecef7925b9e2e231c7daf624bdf380bc. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/USBMF9320304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5a04b51e7c3876eaf5fc9e8c0772597b83c50cbf0d6c7ec0b16869eb6a54a05. 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/USBMF9320306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49555f6f881a3ca94ab255b9b45c65fbfee0821d2f3338df2885a0db5033699b. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/USBMF9321272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x271cae7684e9f2a4d820ad68de2de0804546f46f0e06b98a6d28e1a04adcc3c6. 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/USBMF9321273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b38da0f71e6899dd415d84c98d989b0fdc1b7976d75d158be9becc7a16769e. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/USBMF9321275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97962c529eed6d3f3c12588610428f5e96d658ec152510f17172bc64dc9db7fe. 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/USPUP0811706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12542bbf0bcb35471b1c7fa5058196c0e708f04d46f783f8c9a7b7d888e5825a. 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/USPUP0811707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x823ff4c0c2cdc0042a63a84737a3c02171f414829df2d58ae194d4680ec442fe. 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/USPUP0811532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab37a3cfe112b446de33185395c7da912e7c9dcde40fa94196a459f48485489. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/USPUP0811533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a1f65f9b63b242c2ea7703282fd737985c6e32426b70359db4f6fbdf9d0a8eb. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/USPUP0811695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eeba3464b07ce2d91bf2811fca38f1c58fea969ae309bb667d47e3007577635. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/USPUP0811696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x938ee6051fee06fa200466c2a23de81dab6ed6dad96337fc235d89b6054731c0. 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/USPUP0811700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85cc5fbf0e51298d2d05d7986a079b1cb7807b022e195d560ca45885d73726d8. 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/USBMF0224772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd04028b2fa185d3d55756702735e1f017af2edd62f5ca792d471ff75962209ff. 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/USBMF0224775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e39a83ca3f5aa85b5793b1e9538f4865f99cf437b847cf98aa422bc038c6955. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T09:08:06Z), 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/USBMF0224770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9669a614e07575b81e65efaa56d8bc8c3f9e288defbf8a0502fe6b51e397d81d. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/USPUP0813639.
Martik Greatest Hits - 4 CD Pack - Persian Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30b92d269994c05d4ec4dda722c28e53d2e20505605bbce12c390dc179beefce. 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/USBMF1145322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c8dce6ad643c51725b3c783a1876c5b153231599741cf23d1aeec3c09ce1a27. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/USBMF1145315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x026dddec5ca1443ec9fdfa1549e49aa34d1dff7307caabee91cb5a3c4cd2124c. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/USBMF1145327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0bc69cd0dbf156ada48cc846a4bf83d078b473333b45edc8cdd688ba2df6b67. 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/QMDL41300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7613c51a7aaca4df8c086f72693d5de0e50c69fa92e2a82060aed40e11a9148a. 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/QMDL41300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc137a51fa2f718e2c46cafb2cd7ee3b7f6c20b47e814299a016f51975065b717. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/QMDL41300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x585c300e1605c64b0c352aebe2adcfe32dccb09ddc71c35a669314d1a1b95a82. 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/QMDL41300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa14b562a34872ec19874a63ce40862c97734fdd034a4edb8bbe6ef5fb34278. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QMDL41300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x383e8085e33e4aa1cda07ce36647ad981a1bb3d9b46ea29db9aa57c75625ba8b. 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/QZMEP2303081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a6f87bfdbf694746d8b6acc3e548c7b805f206e690b258fde6db7150304bf1. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/USBMF0224771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6684cd95c1b27af981e73e33262d3ea3f6d3a18463486a73f9ad741ec7426990. 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/USBMF9320305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95032fc5147bb3a43192542fc7b63bddf448da291f00483a8cf6bbfb61445f44. 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/USBMF0224773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8448ec1ed22f4d13f96fc7b1847d93efc062e78d940e18847218d1aa1113931a. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/USBMF9321276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66251aedea60100546eaa62a7acc9891afadeb72c5b3850e04222d0008909e6b. 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/USBMF9320308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c2599a444b0a3e08f8e899bdd68387af78a27b479cec99e29291f60bfbae96b. 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/USCGJ2532009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab747ed8a27dfcf9ab0035620261af8d93fc777da6aaf564cfa9c8ae8b196046. 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/USHM92550207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6b1b8bae929e6801f482c1c57e154c6e5ab63601920faf9a8439413be8c10e2. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/USHM92550210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e264c129b1841ab9bc3c8f2db957dbed4df78eb4413e25f6658257576c03d3e. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USHM92550212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e0fb3afe9093f25fc6cb2a0b9e8e0fdbec6af0d88fcfb8ea2a360e1a3a78d39. 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/USHM92552387.