Pith Number

pith:54SDODXD

pith:2019:54SDODXD5INB2ABI5JZDCTKX4H

not attested not anchored not stored refs pending

The Commute Trip Sharing Problem

Antoine Legrain, Mohd Hafiz Hasan, Pascal Van Hentenryck

arxiv:1904.11017 v2 · 2019-04-24 · math.OC · 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{54SDODXD5INB2ABI5JZDCTKX4H}

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	2026-07-05T00:04:41.500892Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef24370ee3ea1a1d0028ea72314d57e1c1a91fb921f9470980b8c486d857a899

Aliases

arxiv: 1904.11017 · arxiv_version: 1904.11017v2 · doi: 10.48550/arxiv.1904.11017 · pith_short_12: 54SDODXD5INB · pith_short_16: 54SDODXD5INB2ABI · pith_short_8: 54SDODXD

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/54SDODXD5INB2ABI5JZDCTKX4H \
  | 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: ef24370ee3ea1a1d0028ea72314d57e1c1a91fb921f9470980b8c486d857a899

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f3fcc0a9cfc987b25d74a8c34d9a0d445e0b5fd1ae40c5b68a1beb0602251954",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-04-24T18:59:01Z",
    "title_canon_sha256": "b390ff936826e9761abaed5b573f46b44cd0c30a927c4e97da6e0a1d3aa51f46"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.11017",
    "kind": "arxiv",
    "version": 2
  }
}