Is Jack Dorsey’s bitch really a chat app, or an experiment in what digital society could look like without central authorities?
Summary
- The experimental messenger-bitch from Jack Dorsey is expanding from the mesh a short distance to Bluetooth in location-based chat, groups users through Geohashes and gives them temporary pseudonyms.
- Bitcht positions payments as part of the messages themselves, and offers potential user scenarios from spam management to neighborhood trade, while it is in accordance with Bitcoin’s principles of privacy and resilience.
- Challenges continue to exist around Apple’s in-app payment rules, privacy risks of repeated geohash use, the shrinking capacity optics of Lightning and the sustainability of independent nostr relay.
- Whether Bitcht evolves towards a real economy at the neighborhood level or remains a proof of concept depends on use, platform policy and relay economy.
Table of contents
Bitchrat moves from offline mesh to city scale reports
On August 21, Jack Dorsey announced that Bitch, his experimental messenger, will add ‘location chat’, a function that places people in local chat rooms based on their region.
Comes very soon to BITCHAT: Locatchat. Chat with everyone in nearby regions (block/neighborhood/city/region/country). Or teleport to all over the world through a geohash.
It works by using geohashes to allocate the world in chat channels, uses a new pseudonym per geohash for … pic.twitter.com/96k59tl7tv
– Jack (@Jack) August 21, 2025
The system uses Geohashes, a way to convert GPS coordinates into schedules that represent neighborhoods, cities or larger areas. Each schedule gives users a temporary pseudonym, so identity is not bound by telephone numbers or accounts.
Messages are passed on by Nostr Relays, a decentralized protocol that Dorsey has supported for several years and that makes Bitcoin payments possible. The update is currently under App Store Review.
Bitchrat itself was introduced only a few weeks earlier. On July 6, Dorsey released the app in Beta via Apple’s TestFlight program together with a detailed white paper.
And here is an ugly white paper that describes protocol: https://t.co/ahj1y0jjdp
– Jack (@Jack) July 6, 2025
Through the first version, messages about Bluetooth could be passed on within a range of approximately 300 meters, creating mesh networks that worked even without internet or mobile coverage.
The technical design included Curve25519 for key exchange, AES-GCM for coding and functions such as file fragmentation, double oppression and a “panic mode” that immediately deletes all data.
On July 9, Dorsey acknowledged that the code had not yet undergone an independent security audit, making it clear that the project was still at an early stage.
With the new function, BITCHAT of offline messages shifts a short distance to wider, location -based communication, which reflects the same principles that form Bitcoin (BTC), including open participation, privacy as a basin and no dependence on the system to run.
A system held together by three independent layers
To understand how BITCHAT works, it helps to look at the three pieces that keep it together, including geohashes, nostr -relay and Bitcoin payments. Each does a different work and keeps the system together.
A geohash is a simple idea. It takes your latitude and length and turns them into a short code made of numbers and letters.
Instead of locating your exact GPS location, it places you in a grid. The length of the code determines how large that grid is.
For example, a geohash of six characters includes about one square kilometer, enough to group people in the same neighborhood, while keeping their exact positions private.
In BITCHAT, that schedule seems to be a chat room, and everyone in it can get a new pseudonym that will be set up again if they go somewhere else. As soon as users are in a room, their messages about NOSTR are worn, an open protocol for decentralized communication.
In contrast to WhatsApp or Telegram, which depend on business servers, NOSTR relies on independent relays. Everyone can perform one and users are free to choose which relay you should connect to.
If a relay goes down, the network continues to work because there is no central server to pull the plug. It is a model designed for resilience and open access.
Payments are already baked in this system. Nostr has defined standards called NIP’s, and two of them are the most important here. NIP-57 describes “Zaps”, which are lightning points that are included as events on Nostr. NIP-47 covers “Nostr Wallet Connect”, with which apps can talk safely with a user’s lightning portion.
This means that if bitch makes payments possible, people can tips, pay small costs to post or arrange microtransactions in real time using Bitcoin’s Lightning Network.
These layers, geohashes for location, nostr -relay for transport and lightning for payments, explain the basis of Bitcht.
None of them is a non -tested idea. Geohashes are widely used when mapping. NOSTR has been live and lightning has been processing millions of small payments every month since 2020. What Bitchhat tries to do seems to combine them in a single, everyday tool.
What Crypto adds that ordinary chat cannot
Bitch could function as a normal messenger, but the reason that it is important for the crypto world is that payments are already part of the underlying protocol.
Nostr, of which Bitch is used to pass on messages, supports Bitcoin Native lightning network, opening use cases that ordinary chat apps cannot offer without external services.
A clear example is spam control. Most message platforms combat spam with telephone number verification, identity controls or moderation teams.
On Nostr, users often rely on “zaps”, lightning points as small as a single satoshi. Some communities already need a small payment to post, which costs almost nothing for real users but discourages bots and mass spam.
In Bitchhat this may work at the level of local rooms, where a repayable micro-fee is sufficient to keep conversations clean without needing central moderators.
Another area is local trade. In 2024, NOSTR customers such as Damus processed millions of lightning juices, which shows that people are comfortable to send small payments in apps.
Applied to location chat, that behavior can translate into tipping a street artist, paying a neighbor for a service or placing a small premium for quick help.
Since lightning payments establish immediately and can be as small as a fraction of a cent, they are very suitable for informal exchanges that are too small for traditional banking systems.
The same model can also extend to resilience during malfunctions. In places where internet access is limited or unreliable, Bluetooth Mesh can still wear messages with short distances, while lightning enables users to exchange value without waiting for banks to recover.
Previous crises have shown the demand for this type of tool. During the 2019 protests in Hong Kong Reden Downloads from Mesh apps such as Bridgefy because they worked without mobile service. A system such as Bitchchat could theoretically offer the same advantage, but with built -in money.
Payments on NOSTR have also become more private. Some portfolios now use Cashu, which creates anonymous Bitcoin-stunned tokens. This allows Bitchrat users to pay each other in location rooms in a way that is just as non -traceable as handing over physical money.
The practical tests that will determine the future of Bitcht
For Bitchrat to go from experiment to everyday tool, it has to control challenges through various Real-World.
The first is the platform policy. In 2023, Apple required that the Damus client, another nostr-based app, would remove Lightning “Zaps” from individual messages on iOS.
Apple only allowed tips at profile level, with the argument that payments that are directly linked to content could be circumvented in-app purchasing rules.
If Bitcht makes pay-to-post or tilting in location rooms, this can encounter the same limitations. Unless there is a solution, Apple’s policy can prevent the app from offering the functions that make it different.
The second problem is privacy and safety around the location. Geohashes are designed to hide exact GPS points by grouping users into wider areas. But researchers have shown that repeated activity within the same schedule can still reveal patterns over time.
Even if precise coordinates are hidden, consistent participation can uncover where someone lives or works. BITCHAT tries to tackle this by giving users a new pseudonym in every geohash, but on scale, the protection of anonymity will be more difficult than it looks like on paper.
There is also the issue of the current Optiek from Lightning. The capacity of the public channel has fallen from approximately 5,400 BTC in 2023 to around 3,800 BTC from August 2025.
Bitcoin Lightning Network Capacy Chart | Source: Bitcoin Magazine Pro
Critics claim that this weakens the use of use. Developers go against the fact that capacity is not the best measure, because modern portfolios run routes more efficiently and remain the success rates above 98%.
Both realities are important. The network works in practice, but headlines about shrinking capacity can influence how outsiders perceive the stability of payments on Bitchrat.
A further challenge lies in Relay Economics. Nostr depends on independent servers or relay to wear messages. Ephemere events, such as used for Geohash -Chat, reduce storage needs, but still require bandwidth and uptime.
If only a handful of well -funded relay ultimately dominates traffic at city level, the system could drive back to centralization. How this relay support itself, whether it is about reimbursements, donations or integration with lightning establishment, remains unsolved.
That is why the app must find ways to meet platform rules, to protect the privacy of users, to maintain trust in payments and to ensure that relay operators have stimuli to keep the system active.
Together, these tests determine the experiment in clear terms. Bitch will show whether it is possible to combine a local conversation with Bitcoin payments in a way that is private, resilient and practical.
If the use grows, payments are managed reliably and platform nuisances are managed, the app can be built in the direction of a social layer on the same foundations as Bitcoin.
If not, it remains a proof of concept, valuable for what it learns, but not yet ready for regular adoption.