Tien may refer to: Tian, also known as Tien or T'ien, the Chinese religious idea of God or heaven Tian (surname), also romanized as Tien Tien (TV channel), a Dutch television channel Tiền, currency u
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 0x27ecd0317dc55b7b3f84107aebef2429209554832be972a0f0ea8e35dda74b14. 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/1c73abf4-90fb-4e09-a9f3-b0f63448e60f.json and https://artists.proofprofile.net/proofs/artist/1c73abf4-90fb-4e09-a9f3-b0f63448e60f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Over Me (Theme Song From "Heaven in the Dark")