Notes · ongoing entries

Bitcoin Exchange History and Operations

Short pieces on the mechanics of running a bitcoin exchange in its first years: how one was funded, how it was vetted, how it priced bitcoin against ten different currencies, and what happened to the people holding balances when it failed.

BitMarket.eu's brief operating history, from its 2011 launch to the 2012 loss and partial resumption, provides the chronology for these notes. Its multi-currency market structure supplies the operational context for the questions they examine, from custody and banking access to pricing and payment rails. Each entry isolates one narrower issue and can be read independently, in any order.

Between roughly 2011 and 2014 a bitcoin exchange was a small operation solving problems that had no precedent. There was no custody standard, no proof-of-reserves practice, no regulator with a settled view, and frequently no bank. Banking access, custody practice, price fragmentation between venues and a reputation built on forum threads rather than audits are the problems these entries keep returning to. A great deal of what the sector now treats as obvious was worked out in public during those years, usually after something had already gone wrong and someone had lost money. Each note takes one of those problems and follows it as far as the evidence goes, which is sometimes not very far.

Sources are named in every piece. Press releases, regulatory filings, contemporaneous trade reporting and the exchange's own published announcements are cited by link where they exist. Where a figure or a date could not be checked against a primary source, it has been left out rather than estimated, and where the record simply does not explain something, the entry says so instead of filling the gap.

Entries

7 July 2026

PayPal and Bitcoin: How the Payment Processor Question Played Out

From the 2014 BitPay and Coinbase arrangement to Checkout with Crypto and PYUSD. PayPal absorbed the processor role over seven years without ever changing the currency merchants are settled in.

22 June 2026

Bitcoin Gambling Sites and the Problem of Judging Safety

What game verification and licensing can establish, and why neither one reveals whether an operator holds the funds behind customer balances.

29 August 2026

Mt. Gox and the Pattern Behind Early Exchange Failures

The court record, the old wallet found after filing and the accounting failure underneath the exchange collapse.

11 August 2026

Cold Storage, Hot Wallets and the Operational Lesson of 2012

How wallet separation changes the amount exposed to an online compromise without solving every custody problem.

29 July 2026

Proof of Reserves and Where the Practice Actually Came From

The 2014 cryptographic audit, the Merkle-tree mechanism and the limits of a point-in-time snapshot.

11 June 2026

How Bitcointalk Threads Served as Exchange Reputation

Why a public forum identity became announcement page, support desk, change log and reputation record.

4 August 2026

Why an Early European Exchange Listed Rand and Shekel Pairs

What unusual currency coverage offered, and why listing a market never proved that it had liquidity.

16 July 2026

Fragmented Prices and Arbitrage Across Early Bitcoin Exchanges

Separate order books, slow payment rails and the costs that kept visible price gaps from disappearing.

1 July 2026

Banking Access Was the Real Chokepoint for Early Exchanges

Why fiat settlement depended on institutions whose rules and risk categories were still changing.

13 August 2026

Exchange APIs and the First Generation of Bitcoin Trading Bots

How machine-readable order books enabled automation without removing execution, custody or transfer risk.

19 August 2026

What Actually Happened to Customer Funds After a Collapse

How an account balance becomes a creditor claim, and what the Mt. Gox repayment process required.