Pith Number

pith:LYUUDXSX

pith:2012:LYUUDXSXU5D4EGG2RS2Q7YCN5N

not attested not anchored not stored refs pending

On List Colouring and List Homomorphism of Permutation and Interval Graphs

Gabor Tardos, Jessica Enright, Lorna Stewart

arxiv:1206.5106 v1 · 2012-06-22 · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LYUUDXSXU5D4EGG2RS2Q7YCN5N}

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	2026-05-18T03:52:52.236462Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5e2941de57a747c218da8cb50fe04deb7a27b77aff9a08549a71b08fc9c8c575

Aliases

arxiv: 1206.5106 · arxiv_version: 1206.5106v1 · doi: 10.48550/arxiv.1206.5106 · pith_short_12: LYUUDXSXU5D4 · pith_short_16: LYUUDXSXU5D4EGG2 · pith_short_8: LYUUDXSX

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/LYUUDXSXU5D4EGG2RS2Q7YCN5N \
  | 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: 5e2941de57a747c218da8cb50fe04deb7a27b77aff9a08549a71b08fc9c8c575

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "02030f288ab94bde0f721b9d2d0a2b1f42bf18c045f39ac3f3799cd36d6e3d53",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2012-06-22T10:42:36Z",
    "title_canon_sha256": "2788064d6824ee23a31a805856ac59a9405090078be1575540cb91d246e9182f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.5106",
    "kind": "arxiv",
    "version": 1
  }
}