Takun (, also Romanized as Tākūn) is a village in Ahram Rural District, in the Central District of Tangestan County, Bushehr Province, Iran. At the 2006 census, its population was 13, in 4 families.
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 0x9493a51f2616e40e27054da7799b621e0ff76ba18e3ba63383b3ce2f67389098. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2dbec5ed-8155-41a7-988b-6974dc53666c.json and https://artists.proofprofile.net/proofs/artist/2dbec5ed-8155-41a7-988b-6974dc53666c.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 0x78868fe0c1789eea0f10d392bf6b1abf525e4d83555160ea4c2b8cb1694d2357. 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/TCJPZ2415683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19c7fb8ac0d862f3fb89ea584e5910f754d1ec9030c441fc4f53a3b48b37b1d0. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/JPW462419274.
Kimitono Hibiwo Wasurenai feat. Ryo (2023 Remastered)
Song of Female Office Workers feat. tohokuitako,tohokuzunko,tohokukiritan
Love Song -Passionate Feeling- feat. Saki
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a5e9c7e1323d49adb3336065571830951398a15682e622bd7a4b623578f299b. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/TCJPY2353621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc679df13225be31949e8e24d5e7b096f300ff1d3edd7f622cda9d3a32bfe74af. 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/JPW462511105.