Kourosh Yaghmaei (; also spelled as Kourosh Yaghmaee; born 3 December 1946) is an Iranian singer-songwriter, composer and record producer, who started his career in the early 1970s. Regarded as one of
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 0x9b5ed255d4f91bb118b5e863b916071edd980221e787fb029ad807044597f1cf. 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/dec01e6c-3edf-4390-b3b2-5c2ab23c0000.json and https://artists.proofprofile.net/proofs/artist/dec01e6c-3edf-4390-b3b2-5c2ab23c0000.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Back From The Brink: Pre-Revolution Psychedelic Rock From Iran: 1973-1979
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 0xb67e2c5239a4670d03d112fbfc0fe2edbb57013409de08346eddd97095b1af1a. 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/US2S71166010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa63cb7b1bba78f5afcae0f3d3bf023156f81c92160f4f070b96cd81024990eb8. 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/US2S71166011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b87767a7604f904769c43025a3c5b5ac3f697b451bf53fe22d773b6eb8cf60. 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/US2S71166012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc98a308f4dafdf094a460092849df49b2fe7ecb14ca6bc4f291fa2a68638c466. 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/US2S71166016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd43ea6195b91d3d94a1df124076c8bda1587bd96f8ae186bbf1d4d06cd947773. 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/US2S71166017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bdd9ddb60ddf1c4d290cac611a99ef215fdb6c239b2d5f229c99b45668c5b01. 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/US2S71166020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88c97e5f0c65ddfeacb9190e54ab91f583640c85f05be7aed20d6382dbdf4996. 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/US2S71166021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5dcb2789fe702bbe6238734f16b739c2ef1f50b4ff09878d409d6c14ad3d8b9. 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/US2S71166022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ef6969c0a8230ba2a37b3108bda5f13491963d0b2e85599cad52a4e9f594ec. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:49:45Z), 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/US2S71166023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8607a08aface0f15fc88cd96305467a676926b670222dfe208637acd9065aad4. 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/US2S71166024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf1b900416caab53e05aa7ab6f6d7f1e4d8946f284107d47e658c257730aa3d1. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T11:03:24Z), 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/US2S71166025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbae155f708db7b3e479e9028ee034c5a21a825842bbaecdc73a48935bb900f4a. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/US2S71166026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34f302c5f5ed656ac53c74219661108feff5ba0a2fd67bcee3c3b14ad76ecc08. 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/US2S71166027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02f656309e6001a301f59e8ef17e3dfe976da08e8e3c97b87a4c9e8d24638ce6. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/US2S71166028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbd5b4732a3081a9eda64f20ac9270d535a2dc351db3d8c90fc516b43230ac41. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/US2S71166030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaff66fc40544c1c695fa0f61021ea452fcf01923774295ab1847117e0fcf226c. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USBMF9120432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cc85adc283b6bd5dfade1770bb81eb68eaf2cb72b24a5eec0b3d3dd5a9e2efe. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:01:12Z), 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/USBMF9120433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcec917584c506a8268f5c0986f4fc592a674b3ee2fd826bf8279a5a0b35c64d. 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/USBMF9120435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2206609dd9e3ced41639a4f5136e882586e103d4541459158c22e254a42de77. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T10:09:19Z), 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/USBMF9120436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc723d568c627002a87c7156324c5af089cb0018c59c17bb6d3df0fe5161f0046. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/USBMF9120437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d9885b6352cab73c0e96d6e095e32e5e8910af2f60180f8f0ca88fe8166e6aa. 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/USBMF9120439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96d5406957f617c9ce09ea09e48e8a050fc2692000615d21ff1002df787e2bce. 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/USBMF9120430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78403af2069c0f2048d820e4418f6589f36a766308ad39eb7b92cc3f9d362e12. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/USBMF9100432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd70291d5aba49f1bfbdda052727d8eed27bcc0fa9fce2ee6d4d0775be53b9e8. 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/USBMF9100433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a577a2c7278504af86333e400af8956b8a01cc0856c9ce24d74e560ffd3e36b. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USPUP0811231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x903c9dc750f235066e87daa187c97089e4c1e9b8ae5ee862ae76d00b1e200d04. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/USBMF9623073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c5fbca9ec8795cbd01cc905cf0da948389930eaeaaf1250daa3f6d40b86367b. 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/USBMF9623075.
Happy Birthday (Joyful songs for Children)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f4518be403c3c3796f575a1a2aa84412844823549e564857b8784f6c572315. 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/US2S71641002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d44f310be17935c5968a0a09a4089642f07a6e097b551e3aca4f680745b3a13. 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/US2S71641003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ce382165c17eae9571cdfa05dc546b23aa54f3cc9c04618b2ad32de3b0b446. 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/SE6QE2311093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67672b6765d413f90079e79c181955abbf9992affd0a5d9f15f69bc8719d8d46. 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/SE6QE2311094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2696390a3b3a26bce05014e1b272868d13fff5dc97be4fc236ec6664dfea4f5. 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/USA2P2357218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c0ace696be2e3d6c71e97c0f6982e9640895882ff060da8c6ae757e626ee5f5. 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/USA2P2357224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ef77de150ba157e3610316ed2c09ebf6a5562bc9c9783de8bf8155065416441. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T19:07:48Z), 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/USA2P2357222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d3138066dd714856cc93f8ba28afa0b5301b7dc06b93161f1c6a596395b592b. 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/USA2P2357220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36eb6307fd9c80688e358c293f5cfc9c049f62373583174907ae6dcd8dc63648. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/USA2P2527868.