Pith Number

pith:LKZSCIR5

pith:2016:LKZSCIR5PAWAJHPNCEHN7KF4B7

not attested not anchored not stored refs pending

The Complexity of (List) Edge-Coloring Reconfiguration Problem

Akira Suzuki, Hiroki Osawa, Takehiro Ito, Xiao Zhou

arxiv:1609.00109 v1 · 2016-09-01 · cs.DM · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LKZSCIR5PAWAJHPNCEHN7KF4B7}

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	2026-05-18T01:06:27.897222Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5ab321223d782c049ded110edfa8bc0ffd5728339aaea7fef7b35b5c06128dd1

Aliases

arxiv: 1609.00109 · arxiv_version: 1609.00109v1 · doi: 10.48550/arxiv.1609.00109 · pith_short_12: LKZSCIR5PAWA · pith_short_16: LKZSCIR5PAWAJHPN · pith_short_8: LKZSCIR5

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/LKZSCIR5PAWAJHPNCEHN7KF4B7 \
  | 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: 5ab321223d782c049ded110edfa8bc0ffd5728339aaea7fef7b35b5c06128dd1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b6e59759a4e2e2dada01c3018e95e50084268b9648ee54b030ace6ad9e6d100e",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2016-09-01T05:05:47Z",
    "title_canon_sha256": "4bf64fc8b42902c211542275af52019ccadff7f396267ef100f8f75be699b556"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.00109",
    "kind": "arxiv",
    "version": 1
  }
}