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🔒 Paid proposals held safely in escrow — released only when the work's approved.
Followers
44
Account age
3 yrs
💰 Suggested sponsorship rate
$40 – $65 / sponsored post
Estimated from audience size & typical reach — every deal is negotiable and held in SocialDB escrow.
🎁 Free analysisfor cgadski
📊 Post engagement
Recent posts · likes + reposts
Sep 20latest
5
Avg engagement / post
4–5
Typical post (engagement)
11.4%
Engagement vs followers
75/100
Very consistent reach
Jul 2023
On Mastodon since
Half of recent posts land between 4 and 5 likes + reposts (median 4) — a dependable floor a sponsored post can count on.
🔥 Top post: Draw a convex polygon with four vertices randomly selected on th · 9 likes + reposts
📊 Activity & format
Posting cadence
0.13 / week
A lower-frequency account — each post lands with more weight.
Content mix
Mostly text
Recent: 10 text · 2 image · 0 video.
Follower / following
2.3×
Follows 19 back. A more reciprocal / networked account.
Recent posts
View on Mastodon ↗
🔥 Top post
Draw a convex polygon with four vertices randomly selected on the unit circle. The probability that the origin lies inside your polygon is 1/2. Why?
This problem, a very special graph, and more: https://cgad.ski/blog/a-coin-flip-by-any-other-name.html
The entropy of a mixture of two distributions is larger than the convex combination of their entropies. In fact, the difference between these two quantities measures a certain mutual information. How does this quantity change as you vary t…
New blog post on how efficiently neural networks might encode information.
"When Numbers Are Bits: How Efficient Are Distributed Codes?" https://cgad.ski/blog/when-numbers-are-bits.html
Noether's theorem applies to physical processes that are characterized as stationary points for actions. We can also look at the intermediate computations within certain machine learning models as "processes" which by construction are (app…
New blog post: "Backprop Isn't Just For Calculus"
(This semester I had to explain backprop to a class that didn't know what partial derivatives are, and this came out of it.)
https://cgad.ski/blog/backprop-isnt-just-for-calculus.html
Learned about the Schur product theorem this week (products of PD kernels are PD), and just ran into a really simple proof of it on Huis Addison's blog: http://huisaddison.com/blog/cute-proof-about-kernels.html
In fact this is not true, as I realized this morning. My question/answer on SE: https://math.stackexchange.com/questions/4807153/conjugation-of-integration-by-an-increasing-convex-function-is-convex/4807415#4807415
Let f: R -> R be a strictly increasing convex function. For arbitrary measurable functions g, define v(g) = f^-1 (\int f \circ g). Then I claim that v is convex with respect to g.
Does anyone know of a name for this result? It sounds like …
Oh boy, here I go learning what a coend is again.
Got my latest blog post on Hacker News over the weekend! Always fun to see site analytics from the Hacker News crowd. This time someone has even shown up using the niche browser called "Edge."
New blog post, giving a toy example of the relationship between gradient descent and kernel methods: https://cgad.ski/blog/when-gradient-descent-is-a-kernel-method.html
Also featuring more interactive widgets, which may or may not freeze y…
Realized last weekend that I made a mistake in a blog post from last month. (https://cgad.ski/blog/a-note-on-scale-free-networks.html). Fixed now, but a little confused about my new conclusion.
If you have a graph and add new vertices to i…
Got my latest blog post on Hacker News over the weekend! Always fun to see site analytics from the Hacker News crowd. This time someone has even shown up using the niche browser called "Edge."
New blog post, giving a toy example of the relationship between gradient descent and kernel methods: https://cgad.ski/blog/when-gradient-descent-is-a-kernel-method.html
Also featuring more interactive widgets, which may or may not freeze y…
Realized last weekend that I made a mistake in a blog post from last month. (https://cgad.ski/blog/a-note-on-scale-free-networks.html). Fixed now, but a little confused about my new conclusion.
If you have a graph and add new vertices to i…
🐘 Community & instance
Home server
mathstodon.xyz
Their home server on the fediverse — the instance a creator picks signals the community they belong to.
✅ Link-verified
Verified link
Proved ownership of a website linked on their profile — Mastodon's green-check verification, a real identity signal rather than a paid badge.
On Mastodon since
Jul 2023
An established account with real history on the platform.
💡 Facts
🗓️Joined Mastodon in 2023 — 3 years ago.
👁️Averages 5 views per post.
📤Posts about 0.1× per week.
🕵️ Fake follower check
Estimated71/100
Good
Credibility score
92%
Real
Real audience
Low
Fake-follower risk
Medium
Data confidence
- Est. 92% real, active audience · Low fake-follower risk.
- Engagement (~0.1× of followers engage each post) is around typical for Mastodon.
- Verified account.
- Established account (3+ years old).
Heuristic estimate from engagement, follower ratios, account age & growth — a screening signal, not a guarantee.
🔀 Audience overlap
EstimatedEstimated shared audience with similar creators — useful for avoiding overlap (or doubling down) when planning a campaign.
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Frequently asked questions
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