Pith Number

pith:JIO7YV6C

pith:2025:JIO7YV6CSFIQGZWV4Q722U7OO7

not attested not anchored not stored refs pending

An Exact System Optimum Assignment Model for Transit Demand Management

Daniel D. Harabor, Mark Wallace, Xia Zhou, Zhenliang Ma

arxiv:2505.22241 v1 · 2025-05-28 · 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{JIO7YV6CSFIQGZWV4Q722U7OO7}

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	2026-07-05T11:11:11.794252Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4a1dfc57c291510366d5e43fad53ee77f60d1960225011ee02d064609d6406ff

Aliases

arxiv: 2505.22241 · arxiv_version: 2505.22241v1 · doi: 10.48550/arxiv.2505.22241 · pith_short_12: JIO7YV6CSFIQ · pith_short_16: JIO7YV6CSFIQGZWV · pith_short_8: JIO7YV6C

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/JIO7YV6CSFIQGZWV4Q722U7OO7 \
  | 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: 4a1dfc57c291510366d5e43fad53ee77f60d1960225011ee02d064609d6406ff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e3a3bb1ee0f106fdda9f688430d4bfa981c9a19ff17357d757ccb5190ca6354a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2025-05-28T11:22:41Z",
    "title_canon_sha256": "d45f802d6963d19c06b8d1400fc6602ba07a1c478876972c61f4b1df99fdb151"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.22241",
    "kind": "arxiv",
    "version": 1
  }
}