Pith Number

pith:N7X3VVSN

pith:2017:N7X3VVSNVAWHCJ53VFAUXYQVZE

not attested not anchored not stored refs pending

Graphical criteria for positive solutions to linear systems

Carsten Wiuf, Elisenda Feliu, Meritxell S\'aez

arxiv:1709.01700 v1 · 2017-09-06 · math.AG · 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{N7X3VVSNVAWHCJ53VFAUXYQVZE}

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	2026-05-18T00:35:54.566412Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6fefbad64da82c7127bba9414be215c9393449a927a84907976785f0d1099c14

Aliases

arxiv: 1709.01700 · arxiv_version: 1709.01700v1 · doi: 10.48550/arxiv.1709.01700 · pith_short_12: N7X3VVSNVAWH · pith_short_16: N7X3VVSNVAWHCJ53 · pith_short_8: N7X3VVSN

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/N7X3VVSNVAWHCJ53VFAUXYQVZE \
  | 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: 6fefbad64da82c7127bba9414be215c9393449a927a84907976785f0d1099c14

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1a5f37727b48597bb401d28128f225e67a5125c8e7df761936e66744e0f4defd",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2017-09-06T07:26:53Z",
    "title_canon_sha256": "25f7b6edf4e60b045b1c443836c4005588d7ccc26dd534d1c503a1fa9517caa5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.01700",
    "kind": "arxiv",
    "version": 1
  }
}