Pith Number

pith:S55XLVZR

pith:2018:S55XLVZRBHIBPSC7IO7N4RKWA3

not attested not anchored not stored refs pending

Connected $k$-factors in bipartite graphs

Binlong Li, Yandong Bai

arxiv:1808.02660 v1 · 2018-08-08 · 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{S55XLVZRBHIBPSC7IO7N4RKWA3}

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	2026-05-18T00:08:34.717029Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

977b75d73109d017c85f43bede455606f3b96dc482c710c2baeaca6dca93755a

Aliases

arxiv: 1808.02660 · arxiv_version: 1808.02660v1 · doi: 10.48550/arxiv.1808.02660 · pith_short_12: S55XLVZRBHIB · pith_short_16: S55XLVZRBHIBPSC7 · pith_short_8: S55XLVZR

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/S55XLVZRBHIBPSC7IO7N4RKWA3 \
  | 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: 977b75d73109d017c85f43bede455606f3b96dc482c710c2baeaca6dca93755a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b4c30bdc8d37a84d2f7de3883dd12287108278e164dc7229b47ba5a40efa1c44",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-08-08T08:26:26Z",
    "title_canon_sha256": "825b005bccb19c09153925e589adb12a34cb2ee066dc5706b9ff5955fe36ff86"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.02660",
    "kind": "arxiv",
    "version": 1
  }
}