Pith Number

pith:UD3EUI33

pith:2019:UD3EUI33N5LXANXPBW6NEA46H4

not attested not anchored not stored refs pending

Decomposing a Graph into Unigraphs

Jun Kawahara, Shin-ichi Minato, Takashi Horiyama, Yu Nakahata

arxiv:1904.09438 v1 · 2019-04-20 · cs.DS · cs.DM · 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{UD3EUI33N5LXANXPBW6NEA46H4}

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	2026-05-17T23:48:04.187149Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a0f64a237b6f577036ef0dbcd2039e3f1f8b7094bf694d70191a48b294ed3bee

Aliases

arxiv: 1904.09438 · arxiv_version: 1904.09438v1 · doi: 10.48550/arxiv.1904.09438 · pith_short_12: UD3EUI33N5LX · pith_short_16: UD3EUI33N5LXANXP · pith_short_8: UD3EUI33

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/UD3EUI33N5LXANXPBW6NEA46H4 \
  | 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: a0f64a237b6f577036ef0dbcd2039e3f1f8b7094bf694d70191a48b294ed3bee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "08939fdd41e4b35758ee42c281a4c6eb2b46bd34d4919d044649e2d691b3fe04",
    "cross_cats_sorted": [
      "cs.DM",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2019-04-20T12:05:49Z",
    "title_canon_sha256": "b311daaac6a10c4b280863d9027d3fb708a99a9e3f9e025aa8a1389297b3455d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.09438",
    "kind": "arxiv",
    "version": 1
  }
}