Pith Number

pith:BDYLTHFU

pith:2019:BDYLTHFUZGQXZ6OT6IRIUZLDQM

not attested not anchored not stored refs pending

C. H. Robinson Uses Heuristics to Solve Rich Vehicle Routing Problems

Cody Wanless, Ehsan Khodabandeh, John Dennis, Joshua Hammond, Lawrence V. Snyder

arxiv:1912.13157 v1 · 2019-12-31 · cs.AI · 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{BDYLTHFUZGQXZ6OT6IRIUZLDQM}

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	2026-07-05T00:29:06.542550Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

08f0b99cb4c9a17cf9d3f2228a65638315416f75373611d94a2e2bd0e9bc853a

Aliases

arxiv: 1912.13157 · arxiv_version: 1912.13157v1 · doi: 10.48550/arxiv.1912.13157 · pith_short_12: BDYLTHFUZGQX · pith_short_16: BDYLTHFUZGQXZ6OT · pith_short_8: BDYLTHFU

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/BDYLTHFUZGQXZ6OT6IRIUZLDQM \
  | 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: 08f0b99cb4c9a17cf9d3f2228a65638315416f75373611d94a2e2bd0e9bc853a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "24dcc2cd14ce7d165baae12e78e24be6739b5efd8ca869fee04baa8abb0b0774",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2019-12-31T03:24:46Z",
    "title_canon_sha256": "776356770ad9697f1e918de27c1908b65735647a21ff70eb9cecb1155a55de3f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.13157",
    "kind": "arxiv",
    "version": 1
  }
}