Pith Number

pith:QC3SVWMU

pith:2017:QC3SVWMUZPCNCA46HDA4F5KDO7

not attested not anchored not stored refs pending

Graphs with conflict-free connection number two

Hong Chang, Ingo Schiermeyer, Stanislav Jendrol', Trung Duy Doan, Xueliang Li, Zhong Huang

arxiv:1707.01634 v2 · 2017-07-06 · 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{QC3SVWMUZPCNCA46HDA4F5KDO7}

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	2026-05-18T00:16:36.905491Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80b72ad994cbc4d1039e38c1c2f54377cf33939fb2c9f2d82860082862231b61

Aliases

arxiv: 1707.01634 · arxiv_version: 1707.01634v2 · doi: 10.48550/arxiv.1707.01634 · pith_short_12: QC3SVWMUZPCN · pith_short_16: QC3SVWMUZPCNCA46 · pith_short_8: QC3SVWMU

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/QC3SVWMUZPCNCA46HDA4F5KDO7 \
  | 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: 80b72ad994cbc4d1039e38c1c2f54377cf33939fb2c9f2d82860082862231b61

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a797cd1e7e5fc06f25236feb868db28737f5af0e5cb043196c3afe7231203a3e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-07-06T04:47:26Z",
    "title_canon_sha256": "341c595a00aca8c38965b19bc31999e4c653da34329df148e2c17f01c8b8a59d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.01634",
    "kind": "arxiv",
    "version": 2
  }
}