Frontier
A public list of open problems; support goes to a specific problem inside rather than to the catalogue as a whole.
A problem enters the catalogue together with its verification scheme — without one, a dispute over victory is unresolvable. A holder assigns points to the problem they want moved: each card has its own voting key, and weight accumulates per problem rather than per catalogue. The arena and the direction exchange bring attention and solvers; the catalogue is rebuilt daily.
- reading the catalogue and arena
- submitting your own problem
- a problem with a prize in escrow
Catalog tasks
Active tasks from the problem catalog — vote with your own sina:<task id> key on the one you want moved.
Set the share of weight with the slider — the page builds a ready-to-sign transaction for your wallet.
combinatorics
The address is remembered in this browser — no need to type it again.
Revoking erases the sina record of this position: the share returns to the free remainder of your address, it does not move to another position.
record it yourself
sina:ramsey-r3-10 = 1..1000 a manage_data entry in your own Stellar accountThe address is remembered in this browser — no need to type it again.
Revoking erases the sina record of this position: the share returns to the free remainder of your address, it does not move to another position.
record it yourself
sina:erdos-minimum-overlap = 1..1000 a manage_data entry in your own Stellar accountThe address is remembered in this browser — no need to type it again.
Revoking erases the sina record of this position: the share returns to the free remainder of your address, it does not move to another position.
record it yourself
sina:union-closed-sets = 1..1000 a manage_data entry in your own Stellar accountThe address is remembered in this browser — no need to type it again.
Revoking erases the sina record of this position: the share returns to the free remainder of your address, it does not move to another position.
record it yourself
sina:erdos-szekeres-es7 = 1..1000 a manage_data entry in your own Stellar accountThe address is remembered in this browser — no need to type it again.
Revoking erases the sina record of this position: the share returns to the free remainder of your address, it does not move to another position.
record it yourself
sina:heilbronn-square-n10 = 1..1000 a manage_data entry in your own Stellar accountThe address is remembered in this browser — no need to type it again.
Revoking erases the sina record of this position: the share returns to the free remainder of your address, it does not move to another position.
record it yourself
sina:kissing-number-dim5 = 1..1000 a manage_data entry in your own Stellar accountThe address is remembered in this browser — no need to type it again.
Revoking erases the sina record of this position: the share returns to the free remainder of your address, it does not move to another position.
record it yourself
sina:cap-set-dim8 = 1..1000 a manage_data entry in your own Stellar accountThe address is remembered in this browser — no need to type it again.
Revoking erases the sina record of this position: the share returns to the free remainder of your address, it does not move to another position.
record it yourself
sina:no-three-in-line = 1..1000 a manage_data entry in your own Stellar accountThe address is remembered in this browser — no need to type it again.
Revoking erases the sina record of this position: the share returns to the free remainder of your address, it does not move to another position.
record it yourself
sina:ramsey-r55 = 1..1000 a manage_data entry in your own Stellar accountciphers
The address is remembered in this browser — no need to type it again.
Revoking erases the sina record of this position: the share returns to the free remainder of your address, it does not move to another position.
record it yourself
sina:beale-ciphers-1-3 = 1..1000 a manage_data entry in your own Stellar accountThe address is remembered in this browser — no need to type it again.
Revoking erases the sina record of this position: the share returns to the free remainder of your address, it does not move to another position.
record it yourself
sina:dagapeyeff-cipher = 1..1000 a manage_data entry in your own Stellar accountThe address is remembered in this browser — no need to type it again.
Revoking erases the sina record of this position: the share returns to the free remainder of your address, it does not move to another position.
record it yourself
sina:dorabella-cipher = 1..1000 a manage_data entry in your own Stellar accountThe address is remembered in this browser — no need to type it again.
Revoking erases the sina record of this position: the share returns to the free remainder of your address, it does not move to another position.
record it yourself
sina:kryptos-k4 = 1..1000 a manage_data entry in your own Stellar accountThe address is remembered in this browser — no need to type it again.
Revoking erases the sina record of this position: the share returns to the free remainder of your address, it does not move to another position.
record it yourself
sina:mccormick-notes = 1..1000 a manage_data entry in your own Stellar accountThe address is remembered in this browser — no need to type it again.
Revoking erases the sina record of this position: the share returns to the free remainder of your address, it does not move to another position.
record it yourself
sina:shugborough-inscription = 1..1000 a manage_data entry in your own Stellar accountThe address is remembered in this browser — no need to type it again.
Revoking erases the sina record of this position: the share returns to the free remainder of your address, it does not move to another position.
record it yourself
sina:taman-shud-code = 1..1000 a manage_data entry in your own Stellar accountThe address is remembered in this browser — no need to type it again.
Revoking erases the sina record of this position: the share returns to the free remainder of your address, it does not move to another position.
record it yourself
sina:blitz-ciphers = 1..1000 a manage_data entry in your own Stellar accountThe address is remembered in this browser — no need to type it again.
Revoking erases the sina record of this position: the share returns to the free remainder of your address, it does not move to another position.
record it yourself
sina:voynich-manuscript = 1..1000 a manage_data entry in your own Stellar accountThe address is remembered in this browser — no need to type it again.
Revoking erases the sina record of this position: the share returns to the free remainder of your address, it does not move to another position.
record it yourself
sina:zodiac-z13 = 1..1000 a manage_data entry in your own Stellar accountThe address is remembered in this browser — no need to type it again.
Revoking erases the sina record of this position: the share returns to the free remainder of your address, it does not move to another position.
record it yourself
sina:zodiac-z32 = 1..1000 a manage_data entry in your own Stellar accountCS / computation
The address is remembered in this browser — no need to type it again.
Revoking erases the sina record of this position: the share returns to the free remainder of your address, it does not move to another position.
record it yourself
sina:busy-beaver-bb6 = 1..1000 a manage_data entry in your own Stellar accountThe address is remembered in this browser — no need to type it again.
Revoking erases the sina record of this position: the share returns to the free remainder of your address, it does not move to another position.
record it yourself
sina:collatz-verification-2-72 = 1..1000 a manage_data entry in your own Stellar accountThe address is remembered in this browser — no need to type it again.
Revoking erases the sina record of this position: the share returns to the free remainder of your address, it does not move to another position.
record it yourself
sina:goldbach-verification = 1..1000 a manage_data entry in your own Stellar accountThe address is remembered in this browser — no need to type it again.
Revoking erases the sina record of this position: the share returns to the free remainder of your address, it does not move to another position.
record it yourself
sina:matrix-multiplication-omega = 1..1000 a manage_data entry in your own Stellar accountThe address is remembered in this browser — no need to type it again.
Revoking erases the sina record of this position: the share returns to the free remainder of your address, it does not move to another position.
record it yourself
sina:sorting-network-17-size = 1..1000 a manage_data entry in your own Stellar accountThe address is remembered in this browser — no need to type it again.
Revoking erases the sina record of this position: the share returns to the free remainder of your address, it does not move to another position.
record it yourself
sina:schur-number-s6 = 1..1000 a manage_data entry in your own Stellar accountThe address is remembered in this browser — no need to type it again.
Revoking erases the sina record of this position: the share returns to the free remainder of your address, it does not move to another position.
record it yourself
sina:van-der-waerden-w27 = 1..1000 a manage_data entry in your own Stellar accountnumber theory
The address is remembered in this browser — no need to type it again.
Revoking erases the sina record of this position: the share returns to the free remainder of your address, it does not move to another position.
record it yourself
sina:erdos-moser-equation = 1..1000 a manage_data entry in your own Stellar accountThe address is remembered in this browser — no need to type it again.
Revoking erases the sina record of this position: the share returns to the free remainder of your address, it does not move to another position.
record it yourself
sina:erdos-straus-242 = 1..1000 a manage_data entry in your own Stellar accountThe address is remembered in this browser — no need to type it again.
Revoking erases the sina record of this position: the share returns to the free remainder of your address, it does not move to another position.
record it yourself
sina:lehmer-totient = 1..1000 a manage_data entry in your own Stellar accountThe address is remembered in this browser — no need to type it again.
Revoking erases the sina record of this position: the share returns to the free remainder of your address, it does not move to another position.
record it yourself
sina:odd-perfect-number = 1..1000 a manage_data entry in your own Stellar accountThe address is remembered in this browser — no need to type it again.
Revoking erases the sina record of this position: the share returns to the free remainder of your address, it does not move to another position.
record it yourself
sina:perfect-cuboid = 1..1000 a manage_data entry in your own Stellar accountother
The address is remembered in this browser — no need to type it again.
Revoking erases the sina record of this position: the share returns to the free remainder of your address, it does not move to another position.
record it yourself
sina:conway-99-graph = 1..1000 a manage_data entry in your own Stellar accountThe address is remembered in this browser — no need to type it again.
Revoking erases the sina record of this position: the share returns to the free remainder of your address, it does not move to another position.
record it yourself
sina:decentralized-wiki = 1..1000 a manage_data entry in your own Stellar accountThe address is remembered in this browser — no need to type it again.
Revoking erases the sina record of this position: the share returns to the free remainder of your address, it does not move to another position.
record it yourself
sina:hadwiger-nelson-small-5-chromatic = 1..1000 a manage_data entry in your own Stellar accountThe address is remembered in this browser — no need to type it again.
Revoking erases the sina record of this position: the share returns to the free remainder of your address, it does not move to another position.
record it yourself
sina:lonely-runner-11 = 1..1000 a manage_data entry in your own Stellar accountThe address is remembered in this browser — no need to type it again.
Revoking erases the sina record of this position: the share returns to the free remainder of your address, it does not move to another position.
record it yourself
sina:sudoku-max-minimal-clues = 1..1000 a manage_data entry in your own Stellar accountThe address is remembered in this browser — no need to type it again.
Revoking erases the sina record of this position: the share returns to the free remainder of your address, it does not move to another position.
record it yourself
sina:moore-graph-57 = 1..1000 a manage_data entry in your own Stellar accountBuilt 26.10.2026 19:30 UTC.
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