correspondence

Gavin Andresen replies to Satoshi's final email, accepting the alert key and disclosing that he has been invited to present Bitcoin to US intelligence agencies. Satoshi never replies to this message.

Satoshi's final known private messages: April 23, 2011 to Mike Hearn — "in good hands with Gavin." April 26 to Andresen, transferring the alert key and saying he would probably be unavailable.

Satoshi's last known private email. He transfers the Bitcoin network alert key to Gavin Andresen, asks him to stop portraying him as a 'mysterious shadowy figure,' and says he has moved on.

Mike Hearn's private email correspondence with Satoshi Nakamoto, in which Satoshi stated he had 'moved on to other things' and that Bitcoin was 'in good hands with Gavin and everyone.'

Satoshi's last email in the Malmi archive (Feb 22, 2011): a reply to Gavin, copied to Martti, handing each of them the bitcoin-list mailman password in a PGP-encrypted block.

No single day handed Bitcoin to Gavin Andresen: his own commits from October 11, a server-admin pick on December 3, Satoshi's last post on December 12, and his December 19 announcement.

Malmi, wanting more bitcoin.org server admins after an outage, offers the root password to Satoshi and one more person; Satoshi answers that the other person should be Gavin Andresen.

In September 2010, Satoshi privately tells Andresen he is working on other projects — the earliest documented sign of his intent to step back. Andresen later received the repository and the alert key.

Satoshi warns Malmi to de-emphasize Bitcoin's anonymity claims, distinguishing between anonymity and pseudonymity - a prescient warning about privacy expectations.

Gavin Andresen begins corresponding with Satoshi after discovering Bitcoin in May 2010 and starts submitting code contributions. He creates the Bitcoin Faucet to give away free BTC and boost adoption.

Satoshi emphasizes that autostart with minimize-to-tray is 'a must-have feature' for network growth, comparing it to early file-sharing strategies. Implemented by Malmi for Bitcoin 0.2.

Malmi proposes a Bitcoin-to-euro exchange service. Satoshi answers with a fixed support-price idea and says he will not run an exchange himself; Malmi's own bitcoinexchange.com followed in 2010.

Satoshi tells Bohm his node has been connected to 70.113.114.209 since the day before; if Bohm's node isn't connected to that address too, Bohm's node is cut off. The IP was later tied to Trammell.

Satoshi's candid reply to Bohm's connectivity issue, admitting there may be no other nodes running at that moment. He encourages Bohm to keep his server online so new users have someone to connect to.

Bohm reports to Satoshi that Bitcoin has failed to establish any connections for the last day or so, despite restarts. The next day he told Satoshi he usually had three to five connections.

Satoshi suggests using the word 'cryptocurrency' to describe Bitcoin and asks Malmi to remove investment language from the site - a key moment in Bitcoin's branding history.

Satoshi advises Bohm to forward port 8333 on his new router so his Bitcoin node can receive incoming connections: if nobody online can accept them, nodes can't connect at all.

Nicholas Bohm, a retired British solicitor and early Bitcoin user, writes to Satoshi that after installing a new router, his Bitcoin client can no longer connect to the network.

Satoshi approves Malmi's first FAQ draft with small fixes. His warning against pitching Bitcoin as an investment, 'we can't pitch it as that,' came five weeks later, on June 11, 2009.

In earlier answers compiled for Malmi, Satoshi weighs Bitcoin's energy use against banking's costs and names the tension between economic liberty and conservation.

Malmi agrees to develop the Bitcoin website and FAQ, proposes password-protected private keys, and reports running a Bitcoin node 24/7.

Satoshi's first reply to Martti Malmi, who had offered to help with Bitcoin. Satoshi praises Malmi's understanding of Bitcoin and asks him to help write website content and a FAQ.

Satoshi responds to Hal Finney's botnet/pay-per-send point, proposing that fake mailboxes could 'reverse-spam' spammers by harvesting their POW tokens. He also describes e-gold's 'dusting' problem.

Trammell admits the mislabeling was his error, suggests changing 'Received with' to 'Received payment to' for clarity, and points to PayPal as the closest parallel to multiple addresses.

Satoshi explains the default address label is 'Your Address', suggests the mislabeling was a UI-driven user error, and acknowledges that per-payer receiving addresses have no real-world analogy.

Trammell realizes the confusing 'Satoshi' label was on his own receiving address, confirms he has multiple addresses at home, and asks if 'Satoshi' was the default since he doesn't recall setting it.

Satoshi explains the 'Satoshi' label came from Trammell's own address book, that transactions show the receiving address (not the sender), and recommends per-payer addresses to identify payers.

Trammell reports confusion about a 100 BTC transfer between his own two Bitcoin instances — the transaction details showed 'Satoshi' as a label, leading him to wonder if Satoshi had sent the coins.

Satoshi reveals the wallet location (%appdata%\Bitcoin), explains that its transactional database (DBM) survives crashes and power loss, and says socket cleanup code is in the next release.

Satoshi copies his exchange with Trammell to bitcoin-list and the Cryptography list, sharing his Bitcoin vision including the famous line 'It might make sense just to get some in case it catches on.'

Trammell confirms his IP is static, agrees to CC publicly, says he'll join bitcoin-list, reveals he started mining as an investment after Hal Finney's message, and discusses micropayment uptake.

Trammell argues Bitcoin addresses are more secure than IP-based sending since they can be verified via multiple channels. He proposes an address-advertisement toggle and reports an exit socket bug.

Satoshi responds to Trammell's MITM analysis by classifying attacks into two types (chain-of-communication vs. anyone on the Internet), proposes a combined IP+address fix, and notes wallet encryption.

Satoshi discusses dynamic IPs, asks permission to CC the conversation to bitcoin-list and the Cryptography mailing list, and envisions Bitcoin use cases including pay-to-send email and micropayments.

Trammell's detailed security analysis of Bitcoin's send-to-IP feature, identifying MITM vulnerabilities including ARP poisoning and ISP-level interception. Recommends always using Bitcoin addresses.

Trammell shares his IP for Satoshi to send coins, says proof-hashes is open for posting, names the challenge of getting people to value bitcoins, and compares mining to a roulette wheel.

Satoshi informs Trammell that bugs are fixed in v0.1.3 and offers to send him some coins via the send-to-IP feature. The payment became one of the earliest known direct Bitcoin transfers.

Trammell asks what prevents the most powerful node from generating the majority of bitcoins — one of the earliest questions about mining centralization.

Trammell reports two issues upgrading from v0.1.0 to v0.1.3: the old process wouldn't exit, and all four generated coins showed 'Generated (not accepted)' — likely orphans from the communications bug.

Trammell tells Satoshi about his proof-hashes Google Group, gives feedback on the credit field display, says he is running v0.1.1 and will upgrade, and offers to help test new features.

Satoshi replies to Dustin Trammell, explaining the coin maturity system and recommending an upgrade to version 0.1.3 which had stabilized the software.

Dustin Trammell's first email to Satoshi after running the Bitcoin alpha. He reports how it ran, mentions a public timestamp service, and asks about coin maturity (new coins showing 0.00 credit).

Satoshi tells Finney that he cannot receive incoming connections from his location, revealing an operational constraint in the earliest days of the Bitcoin network.

Satoshi's working environment during the Bitcoin v0.1 launch week (Jan 8-12, 2009): "from where I am" in the Jan 12 email to Finney, and how much he packed into that week.

Satoshi personally notifies Hal Finney of the Bitcoin v0.1 release hours after the public Cryptography list post, sending the SourceForge link and pointing him to bitcoin.org for release notes.

Hal Finney's private email to Satoshi during pre-release code review, asking foundational scalability questions: 'How large do you envision it becoming? Tens of nodes? Thousands? Millions?'