Pith Number

pith:UU5NW5Q5

pith:2020:UU5NW5Q52RRSUFKBYN7KQBTN73

not attested not anchored not stored refs pending

The Classification of Magic SET Squares

Alicia Li, Arkajyoti Sinha, Eric Chen, Matthew Qian, Maya Smith, Rohith Raghavan, Samuel Wang, Srikar Mallajosyula, Tanmay Gupta, Tanya Khovanova, William Du

arxiv:2006.04764 v1 · 2020-06-08 · math.HO · math.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UU5NW5Q52RRSUFKBYN7KQBTN73}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T01:08:48.541738Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a53adb761dd4632a1541c37ea8066dfeffc146cc5c3b481fe88498517a1457ef

Aliases

arxiv: 2006.04764 · arxiv_version: 2006.04764v1 · doi: 10.48550/arxiv.2006.04764 · pith_short_12: UU5NW5Q52RRS · pith_short_16: UU5NW5Q52RRSUFKB · pith_short_8: UU5NW5Q5

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/UU5NW5Q52RRSUFKBYN7KQBTN73 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: a53adb761dd4632a1541c37ea8066dfeffc146cc5c3b481fe88498517a1457ef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ca3bd767a0e9061ad8076a79ed02a94941e85204ea24ce4ac165f09c6eddce4d",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.HO",
    "submitted_at": "2020-06-08T17:32:55Z",
    "title_canon_sha256": "bfb0ba4946330163e9e2933646ca04f07084ddbec775fdf489e97d3f4762cdbe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2006.04764",
    "kind": "arxiv",
    "version": 1
  }
}