Pith Number

pith:T7V7WR2G

pith:2017:T7V7WR2GLD37H65NWLXKE4DDHM

not attested not anchored not stored refs pending

Universal Tutte characters via combinatorial coalgebras

Alex Fink, Cl\'ement Dupont, Luca Moci

arxiv:1711.09028 v2 · 2017-11-24 · 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{T7V7WR2GLD37H65NWLXKE4DDHM}

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	2026-05-17T23:55:01.130474Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9febfb474658f7f3fbadb2eea270633b23e9c931d159b014831b445255ca4ad1

Aliases

arxiv: 1711.09028 · arxiv_version: 1711.09028v2 · doi: 10.48550/arxiv.1711.09028 · pith_short_12: T7V7WR2GLD37 · pith_short_16: T7V7WR2GLD37H65N · pith_short_8: T7V7WR2G

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/T7V7WR2GLD37H65NWLXKE4DDHM \
  | 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: 9febfb474658f7f3fbadb2eea270633b23e9c931d159b014831b445255ca4ad1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2e1d302c50a9fcfa0311b00036341826b2b1a982a112c35523743035a6e245fe",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-11-24T16:00:14Z",
    "title_canon_sha256": "3475d75b69f86dc4d970d0c4589f04c2a132cf26c73df74c0b407e9bb2713e8d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.09028",
    "kind": "arxiv",
    "version": 2
  }
}