Pith Number

pith:Z7CKGEZX

pith:2019:Z7CKGEZXQH4WFJ7HCR7DCJV6SQ

not attested not anchored not stored refs pending

Aircraft Loading Optimization: MemComputing the 5th Airbus Problem

Fabio L. Traversa

arxiv:1903.08189 v2 · 2019-03-19 · cs.ET · 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{Z7CKGEZXQH4WFJ7HCR7DCJV6SQ}

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	2026-05-17T23:43:36.629692Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cfc4a3133781f962a7e7147e3126be94190e1860c5dfdec2f369f7ec3392c54c

Aliases

arxiv: 1903.08189 · arxiv_version: 1903.08189v2 · doi: 10.48550/arxiv.1903.08189 · pith_short_12: Z7CKGEZXQH4W · pith_short_16: Z7CKGEZXQH4WFJ7H · pith_short_8: Z7CKGEZX

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/Z7CKGEZXQH4WFJ7HCR7DCJV6SQ \
  | 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: cfc4a3133781f962a7e7147e3126be94190e1860c5dfdec2f369f7ec3392c54c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3124041ebfbcdf58971e628bac9fc75f6f3d5cb4456c5c574e7dfa1ae50d3afb",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.ET",
    "submitted_at": "2019-03-19T18:05:06Z",
    "title_canon_sha256": "923d4463a4129d7a7e7ad1dfd8d42b0a0bae321debb108540c3e8127374e3137"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.08189",
    "kind": "arxiv",
    "version": 2
  }
}