Pith Number

pith:N4H3KTKZ

pith:2011:N4H3KTKZF66OX53JFXY2YJCXE7

not attested not anchored not stored refs pending

Corner Occupying Theorem for the Two-dimensional Integral Rectangle Packing Problem

Duanbing Chen, Tao Ye, Wenqi Huang

arxiv:1111.3715 v1 · 2011-11-16 · cs.DM · math.CO · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{N4H3KTKZF66OX53JFXY2YJCXE7}

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	2026-05-18T04:08:13.208999Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6f0fb54d592fbcebf7692df1ac245727ea27ed5e0077815b567d9645259abf7a

Aliases

arxiv: 1111.3715 · arxiv_version: 1111.3715v1 · doi: 10.48550/arxiv.1111.3715 · pith_short_12: N4H3KTKZF66O · pith_short_16: N4H3KTKZF66OX53J · pith_short_8: N4H3KTKZ

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/N4H3KTKZF66OX53JFXY2YJCXE7 \
  | 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: 6f0fb54d592fbcebf7692df1ac245727ea27ed5e0077815b567d9645259abf7a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d96a107c55228e6bc983db0ad9d299409eacd03caf916f9cb79e430220c001f1",
    "cross_cats_sorted": [
      "math.CO",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2011-11-16T04:13:52Z",
    "title_canon_sha256": "1ef609c5fbd554c851cd7614227e2f18f7b68e21c788f5a0655aa5f504e753e9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.3715",
    "kind": "arxiv",
    "version": 1
  }
}