Pith Number

pith:PR2UCR5K

pith:2026:PR2UCR5KPUT56S6I2FEO4G2ZKO

not attested not anchored not stored refs pending

R2D-RL: A RoboCup 2D Soccer Environment for Multi-Agent Reinforcement Learning

Baofeng Zhang, Haobin Qin, Hidehisa Akiyama, Keisuke Fujii

arxiv:2606.18786 v1 · 2026-06-17 · 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{PR2UCR5KPUT56S6I2FEO4G2ZKO}

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	2026-06-19T16:11:47.238171Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c754147aa7d27df4bc8d148ee1b5953ab148e2ab071f01cef5bca857e29f6ae

Aliases

arxiv: 2606.18786 · arxiv_version: 2606.18786v1 · doi: 10.48550/arxiv.2606.18786 · pith_short_12: PR2UCR5KPUT5 · pith_short_16: PR2UCR5KPUT56S6I · pith_short_8: PR2UCR5K

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/PR2UCR5KPUT56S6I2FEO4G2ZKO \
  | 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: 7c754147aa7d27df4bc8d148ee1b5953ab148e2ab071f01cef5bca857e29f6ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "354c94200bec6234130e4f9dd6e97935d0f03709f2f628fed97fc649a124be1b",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2026-06-17T07:57:06Z",
    "title_canon_sha256": "fd5cd4deb3e27a4059c6586ed4d38b7bf96e6ce08c8ceedfa041d00ed5b901ca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.18786",
    "kind": "arxiv",
    "version": 1
  }
}