Pith Number

pith:ISPZPM4J

pith:2026:ISPZPM4JIMJR3SQV3SJGGPLEBI

not attested not anchored not stored refs pending

Learning Bilevel Policies over Symbolic World Models for Long-Horizon Planning

Dillon Z. Chen, Sheila A. McIlraith, Till Hofmann, Toryn Q. Klassen

arxiv:2605.15975 v1 · 2026-05-15 · cs.AI · cs.RO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ISPZPM4JIMJR3SQV3SJGGPLEBI}

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	2026-05-20T00:01:47.309503Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

449f97b38943131dca15dc92633d640a1099776d7cb18ab2d387ff71777654b6

Aliases

arxiv: 2605.15975 · arxiv_version: 2605.15975v1 · doi: 10.48550/arxiv.2605.15975 · pith_short_12: ISPZPM4JIMJR · pith_short_16: ISPZPM4JIMJR3SQV · pith_short_8: ISPZPM4J

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/ISPZPM4JIMJR3SQV3SJGGPLEBI \
  | 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: 449f97b38943131dca15dc92633d640a1099776d7cb18ab2d387ff71777654b6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "81bb7e485812f46e193b97a31396c7de5ef9cf32e3236267f100564dfb4cb13e",
    "cross_cats_sorted": [
      "cs.RO"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2026-05-15T14:08:44Z",
    "title_canon_sha256": "2feb03183a5309f80268dcd17f36165fe9a0b40a921f211fc50c7f4bb35ea396"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.15975",
    "kind": "arxiv",
    "version": 1
  }
}