Pith Number

pith:XFKPNMXF

pith:2020:XFKPNMXFLXLJSK2II3MOILRRYY

not attested not anchored not stored refs pending

An anytime tree search algorithm for two-dimensional two- and three-staged guillotine packing problems

Florian Fontan, Luc Libralesso

arxiv:2004.02603 v2 · 2020-04-02 · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XFKPNMXFLXLJSK2II3MOILRRYY}

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	2026-07-05T00:56:04.418102Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b954f6b2e55dd6992b4846d8e42e31c61a245f16b4e0494aa18beeb3158cc5d5

Aliases

arxiv: 2004.02603 · arxiv_version: 2004.02603v2 · doi: 10.48550/arxiv.2004.02603 · pith_short_12: XFKPNMXFLXLJ · pith_short_16: XFKPNMXFLXLJSK2I · pith_short_8: XFKPNMXF

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/XFKPNMXFLXLJSK2II3MOILRRYY \
  | 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: b954f6b2e55dd6992b4846d8e42e31c61a245f16b4e0494aa18beeb3158cc5d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c683d39a81e485e0f73dae91f988563a0beb6c79149abebeeb3a8923062cfe2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2020-04-02T13:41:07Z",
    "title_canon_sha256": "85040e7aafc0e9c392c78d1fe3b3bc7b136201618adac815a3c82faf4c554b71"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.02603",
    "kind": "arxiv",
    "version": 2
  }
}