Pith Number

pith:2EGMSAZF

pith:2006:2EGMSAZF7YROW5C3DYK7YGVWX3

not attested not anchored not stored refs pending

Total positivity, Grassmannians, and networks

Alexander Postnikov

arxiv:math/0609764 v1 · 2006-09-27 · math.CO · math.RT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2EGMSAZF7YROW5C3DYK7YGVWX3}

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.

Cited by

11 papers in Pith

Honeycombs and Sums of Hermitian Matrices, Revisited

Newton polygons for the non-bipartite dimer model

Generalizing Lusztig's total positivity II : geometric properties

Amplituhedra and origami, II: loop level

A Boundary--Residue Incidence Coalgebra for Associahedral Scattering Forms

Receipt and verification

First computed	2026-07-04T14:56:36.784197Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d10cc90325fe22eb745b1e15fc1ab6bec564f20549c5c65b24ba40064c230591

Aliases

arxiv: math/0609764 · arxiv_version: math/0609764v1 · doi: 10.48550/arxiv.math/0609764 · pith_short_12: 2EGMSAZF7YRO · pith_short_16: 2EGMSAZF7YROW5C3 · pith_short_8: 2EGMSAZF

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/2EGMSAZF7YROW5C3DYK7YGVWX3 \
  | 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: d10cc90325fe22eb745b1e15fc1ab6bec564f20549c5c65b24ba40064c230591

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a40c816a0fa9b7b462f2315e0874d1ce52be1fa0d89f5323cc498b1a530630b9",
    "cross_cats_sorted": [
      "math.RT"
    ],
    "license": "",
    "primary_cat": "math.CO",
    "submitted_at": "2006-09-27T16:18:24Z",
    "title_canon_sha256": "4f1d5e4fc85cb1a7ebe7c58e54184f9aa3e341c9e21a8292bddc23cfe403d0b2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0609764",
    "kind": "arxiv",
    "version": 1
  }
}