Fig 1.
The majority of the activity on TopShot, in terms of total monetary value, happened during February-March 2021.
Table 1.
Basic statistics for the Topshot market.
Fig 2.
The number of sales and purchases per user can be both described from a double power law.
Fig 3.
The residuals are clustered around 0, but the distribution appears to exhibit skew and/or heteroscedasticity.
Table 2.
Coefficients for player effects are not shown for readability.
Fig 4.
Estimated conditional density for the residual of the expected profit from the sale of the Dennis Schroder collectible.
Table 3.
Sample of transactions labeled as anomalous.
Fig 5.
The subnetwork induced by the transactions deemed as anomalous has a very different structure compared to the full trade network
, which is particularly visible when zooming to two random samples of the
of comparable size to
.
Table 4.
Basic statistics for the subnetwork induced from the transactions labeled as anomalous for different values of δ.
Table 5.
The power-law exponent for the degree distributions of the various “anomalous” subnetworks and the full trade network.
Fig 6.
Bootstrapped distribution for the power-law exponent of the degree distributions for trade networks of the same size as .
Fig 7.
The distribution of the hub and authority centrality values of the induced subnetworks exhibit heavier tails as compared to those in the full trade network.