Pith Number

pith:JI2ZRFX2

pith:2026:JI2ZRFX2PGW3LOVWS6TUTR6WWW

not attested not anchored not stored refs pending

Hierarchical Reinforcement Learning for Cooperative Air-Ground Delivery in Urban System

chunming Ma, Fugee Tsung, Haomin Wen, Lei Chen, Lizhenghe Chen, Qianyu Yang, Sijie Ruan, Songxin Lei, Yexin Li, Yuxuan Liang

arxiv:2602.12913 v2 · 2026-02-13 · cs.CY

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JI2ZRFX2PGW3LOVWS6TUTR6WWW}

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	2026-08-05T00:41:29.323157Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4a359896fa79adb5bab697a749c7d6b59f313780daa4c48da81f58a5c4988c06

Aliases

arxiv: 2602.12913 · arxiv_version: 2602.12913v2 · doi: 10.48550/arxiv.2602.12913 · pith_short_12: JI2ZRFX2PGW3 · pith_short_16: JI2ZRFX2PGW3LOVW · pith_short_8: JI2ZRFX2

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/JI2ZRFX2PGW3LOVWS6TUTR6WWW \
  | 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: 4a359896fa79adb5bab697a749c7d6b59f313780daa4c48da81f58a5c4988c06

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd8c7bc299e4a6b6ce418087ef4f9bf17900af535006d9f67c74b344c3bde419",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2026-02-13T13:19:59Z",
    "title_canon_sha256": "30c50aae79cc0b066c6f1a1f2e7710ecc7842614fc086a2463551df53706a1bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2602.12913",
    "kind": "arxiv",
    "version": 2
  }
}