Jiyan (Life in Kurdish) is a 2001 film written and directed by the Kurdish director Jano Rosebiani. Plot Diyar, a Kurdish-American returns to his hometown of Halabja, to build an orphanage five years
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 0xd08acaefad58eef1459933bbb7fa55c98af84399a7e14749b4af4cc9ee8ebcdb. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ed4a8d93-4d5d-41d0-ab96-5a8e2de6cbf8.json and https://artists.proofprofile.net/proofs/artist/ed4a8d93-4d5d-41d0-ab96-5a8e2de6cbf8.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 0xeef6dc7825723cba062477eda6f2caf1d99f16b3fc3e5cd25ce07307e28e78ca. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEZC62250207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96548ccddcc2e4685d7bf1ea6cfe4ac1550c318b92617565936fb2098b0f4074. 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/DEQ022110858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7442db7b34fe83897833e9074db0441f3199cadd199818cc11cf07e2741e8d9a. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:04:42Z), 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/DEZC62258444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c178451828c486e72a8c4268033248f12d68e50406ee483b8d0a4f309c4e9b6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEZC62258445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5811c8f6b98d8c72a0714d008a6603dfd805d6d6d99b642dce489e771d928a60. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEZC62258446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaf8085ccdfdf6603089332259760321962e63821ddb0c9ac939ab2f10358162. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/DEZC62258447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf83531bc3a3bcabe05d9d0000fd3c46d0eeaa4ff0c9b8847dac13f6e3fc8f80d. 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/DEZC62258449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x598ef909a24256ef8cae9c727d523b0c6ce9c11bed9af26a3cad24d5b1c31bf3. 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/DEZC62258450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x629985a26e8d7e5940a5111be892810c3909b06d07965437d9b442dec8e440cc. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEZC62258451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b524aad82d46313d81ecb79ab81615122b6a9f9aec5dd5de5f2dfc556045dc0. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEZC62258454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b05d89ed51807acb3d7c6ccc157022d1f50baa1173ea23c370e9d79a2084e6. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DEZC62258455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x269aee99d01e21be21b4b03dd22c85f1e6eacae7c914da06699830982d2b2f2c. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:40:54Z), 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/DEZC62258453.
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 0x3bbddf606ce70c3da8fe9c5eeff0592d40853d5085dc13d471aebabd0b674dc9. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/DELJ82050656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc21b74102e5af2c7f8a03d3031fba54b28fc55aa866d36c5614d0884c8473a8e. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/DEZC62267193.