地灵 (Dì Líng) — Subnet Design Proposal
The Decentralized Physical-World Ground Truth Subnet
地灵 is a Bittensor subnet that produces a single commodity:
fresh, verified, ground-truth observations of physical locations.
https://gamma.app/docs/Di-Ling-5jx8am6irzg307f (Slide Deck)
Every physical location becomes an autonomous economic agent — a 地灵 — with a wallet and an appetite for fresh observations of itself. The 地灵 posts bounties for what is happening right now: queue length (排队), business status (营业), inventory freshness (上新), foot-traffic density (人气). Nearby humans submit photos with metadata. A four-stage validator pipeline scores submissions deterministically and settles payments instantly via x402 over USDC.
The name comes from the classical Chinese idiom 地灵人杰 — an outstanding place produces outstanding things. In this subnet, places themselves become outstanding: economic actors with agency, demand, and the ability to compensate humans for sustaining their digital twins.
The location intelligence market is projected to grow from $24B in 2024 to over $50B by 2029. Yet every major location-data product today — Google's Popular Times, 大众点评 (Dianping) reviews, 小红书 (RedNote) 探店 (store-visit) posts — suffers from the same structural failure mode: the platform that hosts the data is also the platform whose merchants the data describes, so it cannot credibly verify itself. A trust crisis around location-tagged media is now openly acknowledged in the Chinese market, with paid 探店 (store-visit) content increasingly indistinguishable from genuine visits.
地灵 solves this by structurally separating the verifier from the platforms being verified, while delivering data that no central provider can produce — because no central provider can be physically present at ten thousand locations at once.
Most subnets pitched today produce commodities that one sufficiently-capable centralized model could also produce. Invoice extraction. Code patches. Policy QA. The decentralization is a choice, justified by ideology or token economics rather than structural necessity.
地灵 is different: the physical distribution of supply is a hard requirement, not a design preference. Humans must be physically present at locations to verify them.
This makes 地灵 one of the few commodities where decentralization is structurally advantaged rather than ideological: supply is physically distributed, buyers need neutrality across competing platforms, and validators can audit outputs against objective evidence.