No.299
Sign SIGN
the omnichain trust layer that stamps claims true
🎭 a wax-seal sprite who hops between kingdoms pressing tamper-proof stamps, and keeps every secret folded shut
💬 “Show me a claim and I press my seal on it, who you are, what you own, what you agreed to. The seal travels to any chain, and anyone can check it is real. Your secrets? Those stay folded behind the wax.”
- What it does: records and verifies tamper-proof claims (identity, ownership, signed agreements) across many blockchains.
- 2021: started as EthSign, a tool for signing agreements on-chain. It grew into the wider Sign protocol.
- Not its own chain: SIGN is a utility token living on Ethereum, BNB Smart Chain, and Base, not a Layer 1.
- Supply: capped at 10 billion SIGN, with locked tokens unlocking over time (not endless printing).
📖 The Story
2021. A hackathon project called EthSign tried to answer a small, stubborn question: how do you sign an agreement so that no one can quietly change it later? Their answer was to record the signed document on a blockchain, where edits leave fingerprints. Xin Yan, an electrical engineer who had earlier worked as an investor, led the effort.
From there the idea kept widening. If you can prove a signed agreement is genuine, you can prove other things the same way: that an address really owns something, that a person is who they say, that someone is eligible for a reward. So EthSign rebranded into Sign, an attestation network, a place to write signed records that anyone, on any chain, can later trust.
The toolkit grew into a small family. EthSign still handles on-chain agreements. SignPass works like a digital passport for identity. TokenTable handles airdrops, vesting, and token unlocks, and has reportedly moved over $2 billion in tokens across networks. The community gathered under a banner they call the Orange Dynasty.
In April 2025 the SIGN token went live, with part of the supply handed out through a Binance airdrop to qualifying holders, alongside exchange listings. The sprite that began by stamping one document at a time now had a token to carry its seal everywhere.
📊 Stats
🧩 How it works
Think of an attestation as a stamped note that says ‘this is true’. Someone makes a signed claim, Sign stamps it once into a record that cannot be quietly altered, and from that single seal many different blockchains and apps can each read it and trust it. When the claim is private, Sign can use a zero-knowledge proof so you show the fact is true without revealing the details behind it. SIGN, the token, pays for and powers this work; it leans on DeFi-style token infrastructure rather than running a chain of its own.
🌗 Light & Shadow
- A clear, real job: making claims that cannot be quietly faked, useful for identity, ownership, and signed agreements
- Already runs shipping products, not just a whitepaper (EthSign, SignPass, and TokenTable, which has reportedly moved over $2B in tokens)
- Works across many chains, so a claim stamped once can be trusted in more than one place
- The token is young, launched in 2025, with most of the 10 billion supply still locked; unlocks add selling pressure over time
- It is not its own chain. It rides on Ethereum, BNB Smart Chain, and Base, so it inherits their fees and limits
- Attestation is a crowded idea. Others, such as the Ethereum Attestation Service, chase the same trust problem, and adoption is far from settled
🧬 Evolution lineage
Sign's lineage is internal: it grew out of its own first product. EthSign, the 2021 signing tool, widened into the Sign protocol and its SIGN token. It is not a fork of any major coin, only a cousin in spirit to attestation and digital-ID ideas like EAS.
🧭 Meet other friends
❓ FAQ
- What is Sign (SIGN)?
- Sign is a network for making and checking tamper-proof claims, things like identity, ownership, or a signed agreement, across many blockchains. SIGN is the utility token that powers it. It is not its own blockchain.
- How is Sign different from EthSign?
- EthSign came first, in 2021, as a tool for signing agreements on-chain. Sign is what it grew into, a wider protocol covering signed records, identity (SignPass), and token distribution (TokenTable), all under one brand.
- How many SIGN tokens are there?
- The supply is capped at 10 billion SIGN. Around 2.3 billion were circulating in mid-2025; the rest unlock slowly on a vesting schedule, so the circulating amount rises over time without ever passing the 10 billion cap.
- What are zero-knowledge proofs used for here?
- They let you prove something is true without handing over the underlying details. You can show you are eligible or over a certain age without revealing your full records. Sign uses this so a claim can be verified while your private data stays folded shut.
⚠️ Not investment advice. All figures are for information only