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FOAM

FOAM — a reference card for a crypto project: what the product does and how verifiable the project’s key claims are; also — alignment with the Decentralized AI thesis (DecAI Fit).

FOAM — an infrastructure project about secure location services (FOAM Location / Trust Zone).

Disclaimer

Important: this page is a reference overview of the project. Within DecAIHub, we separately record a verification based on open sources within the AI thesis (what is real AI/onchain/why a token, and which sources this is based on).
This is not financial advice and not a recommendation to buy/sell/hold any asset. We do not assess price, returns, or entry/exit timing.
Conclusions are based on publicly available materials found as of the verification date. The absence of confirmation does not imply the absence of the technology.

TL;DR (for readers who are not into AI)

  • What it is: a network/protocol for location services independent of centralized sources such as GPS (per the project’s claim).
  • Who it’s for: zone/device operators (Location Service Providers) and developers who need location services.
  • Why onchain/token: per the whitepaper, FOAM is a utility token for the crypto economy of Proof of Location, including Token Curated Registries (deposits/challenges/Cartographers voting) and signaling (staking), and block rewards are also described.

How it works (very briefly)

  1. The participant does: deploys a zone of several radio devices (Zone Anchors) and conducts localization experiments.
  2. The system does: synchronizes time and collects packets/observations, forming location signals/data.
  3. The participant receives: localization results and participation in the testnet program (per the project’s claim).
  4. Where the blockchain is: Ethereum (ERC‑20 token) + onchain logic around Crypto‑Spatial Coordinates (CSC) and Token Curated Registries (TCR) for POI/Proof of Location (per the whitepaper).
  5. Token role (if any): FOAM is used for deposits/staking, challenges and voting in TCR, as well as for signaling and reward/penalty mechanisms (per the whitepaper).

Quick links: AI thesis fit

Project passport

Field Value
Project name FOAM
Also known as (aliases) FOAM Protocol, FOAM Location
Logo (logo) ../assets/700_foam_logo.svg
Token symbol (ticker) FOAM
Category Infra
Primary chain (chain) Ethereum
Type EVM
Network status mainnet
Consensus (consensus) PoS (Ethereum)
Launch date (launch_date) 2018-07-28 (deployment of the FOAM ERC‑20 contract on Ethereum; per the Etherscan creation tx)
Project status (status) active
Token (standard) ERC-20
Token contract 0x4946fcea7c692606e8908002e55a582af44ac121
Token model (token_type) utility (staking + voting + incentives)
Max supply 1 000 000 000 FOAM (18 decimals; max total supply per Etherscan)
Issuance —
Tokenomics (tokenomics, brief) FOAM is used as collateral/deposits and weight for voting in Token Curated Registries (POI/Proof of Location), as well as for signaling; rewards/penalties and block rewards are described (per the whitepaper).
Governance Token holders (Cartographers) vote within TCR; the ability to change modular FOAM TCR parameters is claimed (per the whitepaper)
Admins/keys —
Audit —
Bug bounty —
Team (team) —
Funding (investors/funding) —
AI component (ai_component) —
Use‑case (use_case) secure location services (proof-of-location)
DecAI Fit — AI thesis fit 0/6 — no AI reality and no AI intent (ai_score=0)
DecAI Fit component summary ai_score 0 / onchain_score 2 / token_score 2 / evidence_score 2
Last verified 2026-02-11

General project overview

FOAM describes FOAM Location as a “permissionless and autonomous network of radios” for secure location services through time synchronization, without dependence on GPS. On the Trust Zone page, the project describes an incentivized testnet and participation by zone operators.

Confirmed Tier‑1 artifacts: a public whitepaper describing FOAM Protocol (CSC, PoL, TCR, signaling) and the ERC‑20 token contract on Ethereum.

Features/modules

  • FOAM Location / Trust Zone (an incentivized testnet per the project’s claim).
  • Zone Anchors (radio nodes) and zones (a minimum of 4 nodes per zone).
  • Localization experiments and data collection/logging.

Typical scenarios

  • Scenario 1: an operator deploys a zone and performs testnet tasks → submits results for evaluation.
  • Scenario 2: a developer integrates a location service into an application → uses documentation/the whitepaper (integration details require separate verification).

Getting started (wallet/network)

  • What you need: access to the project documentation and participation in programs/zones (for details, see links_*).
  • Network/chain: Ethereum (ERC‑20 token and smart contracts around CSC/TCR per the whitepaper); the Trust Zone testnet is described on the project website.
  • Fees: Ethereum fees — for operations with the token; other fees/terms are not established.

Architecture/tech (non‑AI)

  • Components: radio devices (Zone Anchors), zone management software and a localization protocol.
  • Participant roles: zone operators (Location Service Providers), users/integrators of the location service.
  • Where logic runs: localization/data collection — mainly offchain; the onchain part in the whitepaper includes a CSC registry and TCR/Signaling token mechanics for Proof of Location.
  • Dependencies: —.

Token/economics (expanded, no forecasts)

  • Token utility: the whitepaper describes Token Curated Registries (POI candidate deposits, challenges, FOAM‑weighted Cartographers voting) and signaling (staking FOAM in an “area” as an indicator of demand), as well as reward/penalty mechanics and block rewards.
  • Protocol necessity drivers: whitepaper: the FOAM crypto economy supports POI/Proof of Location curation through staking/voting and the distribution of deposits/rewards.
  • Who pays fees: token users for ERC‑20 operations on Ethereum.
  • Where fees go: to Ethereum validators (network fees).
  • Max supply: 1 000 000 000 FOAM (max total supply per Etherscan).
  • Issuance/burn: per the Etherscan deployment tx, a mint of 1 000 000 000 FOAM (max total supply) to the FoamSale contract is observable; further issuance/burn are not established per Tier‑1 as of the verification date.
  • Security/incentive mechanisms: —.
  • Distribution and token issuance schedule: per the Etherscan creation tx (2018‑07‑28), 1 000 000 000 FOAM was minted to 0x3cE3B6d9372a4d761172a89cf0139129309fA0ae (FoamSale); further distribution/vesting are not established per Tier‑1 as of the verification date.
  • Treasury: —.

Governance

  • Who makes decisions: Cartographers (FOAM token holders) vote on POI inclusion/exclusion in TCR (per the whitepaper).
  • How protocol parameters change: the whitepaper claims that Cartographers can change modular FOAM TCR parameters by voting (for example, challenge/voting windows).

Security and incidents

  • Audits: —.
  • Bug bounty: —.
  • Incidents: —.
  • Threat model: —.

Project status and timeline

  • Current status: active; the incentivized Trust Zone testnet is mentioned.
  • Key releases/milestones: not established per Tier‑1 as of the verification date.
  • Roadmap: not found per Tier‑1 as of the verification date.

Ecosystem/integrations

  • Integrations: —.
  • Partners: —.
  • Where it’s actually used: location services and localization experiments (per the Trust Zone description).

AI component of the project

  • What is real AI here? No Tier‑1 confirmation of an AI component in the product was found.
  • What is truly onchain? The ERC‑20 token contract on Ethereum and CSC/TCR/Signaling onchain logic for Proof of Location (per the whitepaper).
  • Why is a token needed? Per the whitepaper, FOAM is used for deposits/staking and voting in TCR (POI/Proof of Location), as well as for signaling and reward/penalty mechanics.
  • Red flags (based on the information found): general descriptions of “blockchain/logging” without specific onchain mechanics and tokenomics parameters.

DecAI Fit component summary

  • DecAI Fit: 0/6 — no AI reality and no AI intent (ai_score=0)
Component Level Score
AI reality low 0
Onchain necessity medium 2
Token necessity medium 2
Evidence Tier‑1 present 2
Details

AI reality

AI_0 — AI intent (Tier‑1 roadmap) (1/0)

  • AI_0 (decision): 0
  • Claim (one line): No Tier‑1 mention of AI as intent/applicability was found.
  • Evidence: Tier‑1 — https://foam.space/
  • Why sufficient / why not (one line): The project is about location services; an AI component is not described.
  • Conflict note (if any): —

AI_1 — what the AI does (1/0)

  • AI_1 (decision): 0
  • Claim (one line): An AI component is not established per Tier‑1.
  • Evidence: Tier‑1 — https://foam.space/
  • Why sufficient / why not (one line): There is no description of AI tasks/models.
  • Conflict note (if any): —

AI_2 — demos/examples (1/0)

  • AI_2 (decision): 0
  • Claim (one line): An AI demo is not applicable: an AI component is not established.
  • Evidence: Tier‑1 — https://foam.space/
  • Why sufficient / why not (one line): —.
  • Conflict note (if any): —

AI_3 — metrics/quality (1/0)

  • AI_3 (decision): 0
  • Metrics: —.
  • Context (version/date/how measured): —.
  • Evidence: Tier‑1 — https://foam.space/
  • Why sufficient / why not (one line): Not applicable without an AI component.
  • Conflict note (if any): —

AI_4 — tech description/architecture/versions (1/0)

  • AI_4 (decision): 0
  • Claim (one line): A tech description of an AI component is not applicable: an AI component is not established.
  • Evidence: Tier‑1 — https://foam.space/
  • Why sufficient / why not (one line): —.
  • Conflict note (if any): —

Onchain necessity

OC_1 — contracts/addresses/chain (1/0)

  • OC_1 (decision): 1
  • Chain: Ethereum
  • Addresses/identifiers: 0x4946fcea7c692606e8908002e55a582af44ac121 (ERC‑20 contract); creation tx 0x6cadd5e8960f526803f23a72a9232492a028502a81aa71fb21beb6907d345313; ContractCreator 0x3f0e845c2365bBB2c98CcE78c970dDC060E6aC01 (per Etherscan).
  • Evidence: Tier‑1 — https://etherscan.io/token/0x4946fcea7c692606e8908002e55a582af44ac121 ; https://etherscan.io/tx/0x6cadd5e8960f526803f23a72a9232492a028502a81aa71fb21beb6907d345313
  • Why sufficient / why not (one line): Etherscan records the existence of the ERC‑20 contract and its creation tx on Ethereum mainnet.
  • Conflict note (if any): —

OC_2 — onchain beyond just a token (1/0)

  • OC_2 (decision): 1
  • What useful logic is onchain: per the whitepaper: CSC (Crypto‑Spatial Coordinates) as an onchain registry of locations/addresses and TCR/Signaling smart contracts for Proof of Location (POI, deposits/challenges/voting).
  • Evidence: Tier‑1 — https://foam.space/publicAssets/FOAM_Whitepaper.pdf
  • Why sufficient / why not (one line): The whitepaper describes specific onchain mechanisms (CSC/TCR/Signaling) on top of Ethereum.
  • Conflict note (if any): —

OC_3 — onchain is critical (1/0)

  • OC_3 (decision): 0
  • “Replace the blockchain” test: onchain criticality is not established per Tier‑1 as of the verification date.
  • Evidence: Tier‑1 — https://foam.space/publicAssets/FOAM_Whitepaper.pdf
  • Why sufficient / why not (one line): There is no explicit “without the blockchain X breaks down” test (in terms of system requirements).
  • Conflict note (if any): —

Token necessity

TK_0 — no token (1/0)

  • TK_0 (decision): 0
  • Claim (one line): An ERC‑20 contract is recorded in links_*, so the token exists.
  • Evidence: Tier‑1 — https://etherscan.io/token/0x4946fcea7c692606e8908002e55a582af44ac121
  • Why sufficient / why not (one line): The onchain contract page confirms the existence of the token.
  • Conflict note (if any): —

TK_1..TK_4 (1/0)

TK_1 — payment for the service (1/0)

  • TK_1 (decision): 0
  • Claim (one line): Payment for the service with the token as a “fee” is not recorded in the whitepaper as a mandatory mechanic.
  • Evidence: Tier‑1 — https://foam.space/publicAssets/FOAM_Whitepaper.pdf
  • Why sufficient / why not (one line): The whitepaper describes token mechanics through staking/deposits/voting, rather than a model of payment for the service.
  • Conflict note (if any): —

TK_2 — incentives/collateral/penalties (1/0)

  • TK_2 (decision): 1
  • Claim (one line): FOAM is used as collateral/deposits and economic weight in TCR (POI): candidate deposits/challenges, distribution of deposits as rewards/penalties; staking in signaling and block rewards are also described.
  • Evidence: Tier‑1 — https://foam.space/publicAssets/FOAM_Whitepaper.pdf
  • Why sufficient / why not (one line): The whitepaper specifically describes incentive mechanics (staking/deposits, challenges, rewards/penalties).
  • Conflict note (if any): —

TK_3 — governance (1/0)

  • TK_3 (decision): 1
  • Claim (one line): The whitepaper describes voting by FOAM token holders (Cartographers) within TCR and the ability to change modular FOAM TCR parameters (challenge/voting windows).
  • Evidence: Tier‑1 — https://foam.space/publicAssets/FOAM_Whitepaper.pdf
  • Why sufficient / why not (one line): The whitepaper describes token‑based voting and changes to TCR parameters as a form of governance at the registry mechanics level.
  • Conflict note (if any): —

TK_4 — token is replaceable (1/0)

  • TK_4 (decision): 0
  • Claim (one line): The replaceability of the token is not established per Tier‑1 as of the verification date.
  • Evidence: Tier‑1 — https://foam.space/publicAssets/FOAM_Whitepaper.pdf
  • Why sufficient / why not (one line): Without a confirmed role of the token, we cannot conservatively set 1.
  • Conflict note (if any): —

Evidence (table)

Tier Source What it proves
Tier‑1 https://foam.space/ Description of Trust Zone and FOAM Location (purpose and participant roles).
Tier‑1 https://foam.space/publicAssets/FOAM_Whitepaper.pdf Project whitepaper (technical context).
Tier‑1 https://foam.space/publicAssets/FOAM_Whitepaper.pdf Token Curated Registries (TCR) for POI: deposits/challenges/voting and distribution of deposits as incentives.
Tier‑1 https://foam.space/publicAssets/FOAM_Whitepaper.pdf CSC (Crypto‑Spatial Coordinates) and Proof of Location as onchain mechanisms/registry on top of Ethereum.
Tier‑1 https://etherscan.io/token/0x4946fcea7c692606e8908002e55a582af44ac121 The existence of the FOAM ERC‑20 token/contract on Ethereum.
Tier‑1 https://etherscan.io/token/0x4946fcea7c692606e8908002e55a582af44ac121 Max total supply = 1 000 000 000 FOAM (18 decimals).
Tier‑1 https://etherscan.io/tx/0x6cadd5e8960f526803f23a72a9232492a028502a81aa71fb21beb6907d345313 Creation tx of FOAM smart contracts (including the ERC‑20 token contract) and mint of 1 000 000 000 FOAM to 0x3cE3B6d9372a4d761172a89cf0139129309fA0ae (FoamSale).

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