pith. sign in
Pith Number

pith:464O5LLI

pith:2019:464O5LLISMQWEC6DAHFOXFL3VD
not attested not anchored not stored refs pending

Circularly compatible ones, $D$-circularity, and proper circular-arc bigraphs

Mart\'in D. Safe

arxiv:1906.00321 v1 · 2019-06-02 · math.CO · cs.DM

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{464O5LLISMQWEC6DAHFOXFL3VD}

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 2026-05-17T23:44:27.445187Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

e7b8eead689321620bc301caeb957ba8cae4408017f00c2f74272dc73d27d4a2

Aliases

arxiv: 1906.00321 · arxiv_version: 1906.00321v1 · doi: 10.48550/arxiv.1906.00321 · pith_short_12: 464O5LLISMQW · pith_short_16: 464O5LLISMQWEC6D · pith_short_8: 464O5LLI
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/464O5LLISMQWEC6DAHFOXFL3VD \
  | 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: e7b8eead689321620bc301caeb957ba8cae4408017f00c2f74272dc73d27d4a2
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "fb202a154b8fdad622b7d6d59647ac20c0027b0abf45b6762ae62687fa55c8a3",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-06-02T01:10:39Z",
    "title_canon_sha256": "845141a4b48fc41c20008ec092e5bb2e653b5d037633493908c2d1fbd097ef38"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.00321",
    "kind": "arxiv",
    "version": 1
  }
}