Pith Number

pith:NIHWMLFT

pith:2016:NIHWMLFTDUEUYD7HK3GPHXS5EP

not attested not anchored not stored refs pending

Colorings and flows on CW complexes, Tutte quasi-polynomials and arithmetic matroids

Emanuele Delucchi, Luca Moci

arxiv:1602.04307 v3 · 2016-02-13 · math.CO · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NIHWMLFTDUEUYD7HK3GPHXS5EP}

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	2026-05-18T01:14:52.464085Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6a0f662cb31d094c0fe756ccf3de5d23f83d99b003e15bf3e1beadaa3baed232

Aliases

arxiv: 1602.04307 · arxiv_version: 1602.04307v3 · doi: 10.48550/arxiv.1602.04307 · pith_short_12: NIHWMLFTDUEU · pith_short_16: NIHWMLFTDUEUYD7H · pith_short_8: NIHWMLFT

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/NIHWMLFTDUEUYD7HK3GPHXS5EP \
  | 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: 6a0f662cb31d094c0fe756ccf3de5d23f83d99b003e15bf3e1beadaa3baed232

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6cba5e574d8b3edadef79dce4f01d6669f87cfefb65dd43645e3b0c26c2f215d",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2016-02-13T09:17:33Z",
    "title_canon_sha256": "c48fa1a74dfad2882f06e8fbc0fa98fcec636d4d60f84d214dffed4e5ecfe323"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.04307",
    "kind": "arxiv",
    "version": 3
  }
}