About

What this is

zatoshi.tools builds data and analytics tools for Zcash NFTs.

Its first supported collection is zkSNARKs on zilkroad. This view reports the collection's listings, sales, liquidity, and comparable trades without pretending that a thin market is more certain than it is.

Methodology

Days of inventory

Listed-now divided by confirmed 24-hour sales, shown against the market figure. Listed-now is an exact snapshot; only the sale count is modelled. It is a turnover measure, not a prediction of how long one listing will take to sell.

95% interval

The interval around the sales count uses a Poisson model. Listed-now remains the exact snapshot, so the uncertainty shown belongs only to the observed 24-hour sales count.

Sell-through

Distinct items sold divided by distinct items ever listed. It is not a count of listing events: one piece listed 99 times still counts once, not 99.

New listing vs. reprice

The marketplace implements a price change as cancel-then-relist. A relist within 5 seconds of a cancel is treated as a reprice, not new supply. In the recent 24-hour window, 3,415 of 5,550 listing events were reprices by that rule.

Comparable median

The comparable price is the median of sales in the same rarity tier from the prior 24 hours, published only when there are at least 5 sales. The sample size and window are displayed with the benchmark.

Rarity

Rarity is the multiplicative product of the published marketplace trait frequencies. It is a collection-specific ranking input, not an appraisal.

Benchmark standing

A listing is compared only with its published same-tier benchmark. Every benchmark carries its sample size and window; figures with too few sales are not shown and receive no standing.

How it works

A Python pipeline polls the marketplace every 3 seconds and writes events to Postgres. It recomputes and republishes all metrics every 60 seconds as one internally consistent run.

The web application reads published values and computes no statistics, so a number cannot change meaning between the page and the pipeline. There are two clocks: live observations refresh every 3 seconds, and analytics refresh every 60 seconds.

What this is not

It is not financial advice, a valuation service, a source of price predictions or estimated values, or a system of value badges. It reports observations and uncertainty rather than turning sparse trades into a price oracle.

It does not execute trades. Every buy action links to zilkroad, where marketplace activity happens.