Pith Number

pith:WQJ7JYX5

pith:2018:WQJ7JYX56UTQPAMBWFTEFZJDVP

not attested not anchored not stored refs pending

Conflict-free connections: algorithm and complexity

Meng Ji, Xiaoyu Zhu, Xueliang Li

arxiv:1805.08072 v3 · 2018-05-18 · math.CO · cs.CC · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WQJ7JYX56UTQPAMBWFTEFZJDVP}

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	2026-05-18T00:05:21.627777Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b413f4e2fdf527078181b16642e523abc961b9f68ad2b1f3668e1a13a90506ef

Aliases

arxiv: 1805.08072 · arxiv_version: 1805.08072v3 · doi: 10.48550/arxiv.1805.08072 · pith_short_12: WQJ7JYX56UTQ · pith_short_16: WQJ7JYX56UTQPAMB · pith_short_8: WQJ7JYX5

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/WQJ7JYX56UTQPAMBWFTEFZJDVP \
  | 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: b413f4e2fdf527078181b16642e523abc961b9f68ad2b1f3668e1a13a90506ef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b038342d551ccec5bc471ce0cfc8c2cc1b3bbfb48a9beac458a42370093d1b5",
    "cross_cats_sorted": [
      "cs.CC",
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-05-18T07:40:12Z",
    "title_canon_sha256": "c2513be0454514fe6231e9217ace4218accb39bd7033685e14497f93fdc7b9f6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.08072",
    "kind": "arxiv",
    "version": 3
  }
}