Andy & Kouros (Persian: ) were an Iranian pop duo formed in Los Angeles in the mid-1980s, consisting of Andranik "Andy" Madadian and Kouros Shahmiri. Active until 1991, they released four studio albu
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 0x0cae6beb7fed3147f19cdc173739631f77aae91add06f1570a47a8b17f6dc642. 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/56f20444-8be5-4107-846d-b4c50561801d.json and https://artists.proofprofile.net/proofs/artist/56f20444-8be5-4107-846d-b4c50561801d.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 0xedbb590b19f750568a3b5108d0fc8c7118c36915008f5ec381c0e57140094d69. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USBMF9019902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51a96bec1063fe875a31ce987be26c268d6801c44aa7fb1350bebe85f799299b. 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/USBMF9019904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x604b568feb867e750144fc9aaf091e47d9f7ea5205c5194c4ce2617eef3af196. 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/USBMF9019905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x945a444910cf28d7e2c52815f024561f1e14e637fa828a93b9e936d299b4e305. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/USBMF9019906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c2412c280cf613608daadbfaffe358c5e139a371aa2604f3aa3b02998755fae. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/USBMF9019909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x400cd1f4e0eba6a065fcc1eb28f39a67c915fb1492f0f47f5702ebc0ac63e7d8. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USBMF9220104.
Andy & Kouros Golden Songs, Vol. 2 - Persian Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa82df79e4fab0185ac5a6c2a3edaf55f1f4125c74d722a892bd982976efbbdc2. 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/USBMF0642204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x657fb10536b5a35302195b60793b8c8f2c1d49211e263a664c47582a71b8573d. 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/USBMF0642205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e687b3693c375256af24d65a1ce64ce05475a781d237f5bd6f5993047c667d1. 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/USBMF0642216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b5871a9a2c77f734283ece03eb2a17a4a7f1c6a396ea1d3c164ec5da040b858. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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/USBMF0642209.
Andy & Kouros Golden Songs, Vol. 1 - Persian Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fa22c7396efecc343c27357c226429e25a5e10665264e83d751baa5dc476ef9. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/USBMF0642101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb58e45c186978f6b043b03bcdde39937ed2e583402832dc6f8bd5b534050bf23. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/USBMF0642123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x461627792cffad7733011d8a9cc2554f386a8565c5d87664af30cffce288fb96. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/USBMF0642114.