Pith Number

pith:G6NEUS3B

pith:2018:G6NEUS3BV2QO5BZHCWWRPAOHWU

not attested not anchored not stored refs pending

From unicellular fatgraphs to trees

Christian M. Reidys, Thomas J. X. Li

arxiv:1806.03319 v1 · 2018-06-08 · 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{G6NEUS3BV2QO5BZHCWWRPAOHWU}

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	2026-05-18T00:13:43.784788Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

379a4a4b61aea0ee872715ad1781c7b53c7a0d1be6548327b79ff0edea2c57ba

Aliases

arxiv: 1806.03319 · arxiv_version: 1806.03319v1 · doi: 10.48550/arxiv.1806.03319 · pith_short_12: G6NEUS3BV2QO · pith_short_16: G6NEUS3BV2QO5BZH · pith_short_8: G6NEUS3B

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/G6NEUS3BV2QO5BZHCWWRPAOHWU \
  | 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: 379a4a4b61aea0ee872715ad1781c7b53c7a0d1be6548327b79ff0edea2c57ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a404eef586e71a7a0d0ed2b1dbe0a19c2e1b142b0b832885605bf18added82e3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-06-08T18:47:34Z",
    "title_canon_sha256": "cc5e55a112ca500bc448232610a416201cecfb2c37dd937d2f44c7eeb03342d7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.03319",
    "kind": "arxiv",
    "version": 1
  }
}