Bijan Bijani (, born May 24, 1953) is an Iranian singer and calligrapher. His most famous work is the song "The Concealment of the Heart". Biography Bijan Bijani was born on May 24, 1953, in Babol.
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 0x1ef49645f1df35b63a3845c32b146bb018d049085045362f921090f3e8f5de78. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ed82917d-8fb5-4acc-ad50-cd7ac366951e.json and https://artists.proofprofile.net/proofs/artist/ed82917d-8fb5-4acc-ad50-cd7ac366951e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ayeneh Dar Ayeneh(Iranian Classical Music)
Sib-e-Sorkh-e-Khorshid-(The Red Apple Of The Sun) Iranian Classical Music
Nahankhaneh-Ye-Del(Persian Classical Music)
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 0x02be5cb5a40a4f8241ec1f0fa89e84826c2959d311b6b374b1aa3fd37dbf81eb. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T16:59:32Z), 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/IRIRA1100732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca1440b39249ca4f6b441deba17cdf06ef1771cb99c333234807178b739f1cc5. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/IRIRA1100733.
Colorful Dream(Roya-ye-Rangin)-Persian Classical Music)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe18c5f88776d42a327402bcee6c3cfafd134848bdfffa6625122fe0cd1ba4518. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/US6R21430620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d9093a64fc4d064da6d3f4523f2f426c4adf0cf28a3cae60fcfd025398bdd85. 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/US6R21430622.