Pith Number

pith:QZMDHTZH

pith:2018:QZMDHTZHYU6VZW3T7HM34AEQ2T

not attested not anchored not stored refs pending

On three soft rectangle packing problems with guillotine constraints

Minh Ho\`ang H\`a, Quoc Trung Bui, Thibaut Vidal

arxiv:1805.03631 v1 · 2018-05-09 · 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{QZMDHTZHYU6VZW3T7HM34AEQ2T}

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	2026-05-18T00:16:19.685264Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

865833cf27c53d5cdb73f9d9be0090d4ec0f964ad6f88fea7aa1adfc4a842260

Aliases

arxiv: 1805.03631 · arxiv_version: 1805.03631v1 · doi: 10.48550/arxiv.1805.03631 · pith_short_12: QZMDHTZHYU6V · pith_short_16: QZMDHTZHYU6VZW3T · pith_short_8: QZMDHTZH

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/QZMDHTZHYU6VZW3T7HM34AEQ2T \
  | 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: 865833cf27c53d5cdb73f9d9be0090d4ec0f964ad6f88fea7aa1adfc4a842260

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7d5e69019d30f09714a9bb129eba0eae435f26d4088fbd2be65ae8e83eb9d687",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2018-05-09T17:48:39Z",
    "title_canon_sha256": "f636476de77dc1629b8a8de66cc627f797f57c0cec007fc1d9c311e206e40cd3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.03631",
    "kind": "arxiv",
    "version": 1
  }
}