Pith Number

pith:E3GKMRTW

pith:2026:E3GKMRTWMMAUFLQVT7L2PNKEO3

not attested not anchored not stored refs pending

Temporal GRPO: Beyond Trajectory-Level Credit in Vision-Language-Action Reinforcement Learning

Changwen Zheng, Fengge Wu, Hang Gao, Wenwen Qiang, Yao Zhou

arxiv:2608.13026 v1 · 2026-08-13 · 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{E3GKMRTWMMAUFLQVT7L2PNKEO3}

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	2026-08-14T01:00:09.324829Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

26cca64676630142ae159fd7a7b54476e49c6540e676b03ed3de8a53945b999f

Aliases

arxiv: 2608.13026 · arxiv_version: 2608.13026v1 · doi: 10.48550/arxiv.2608.13026 · pith_short_12: E3GKMRTWMMAU · pith_short_16: E3GKMRTWMMAUFLQV · pith_short_8: E3GKMRTW

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/E3GKMRTWMMAUFLQVT7L2PNKEO3 \
  | 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: 26cca64676630142ae159fd7a7b54476e49c6540e676b03ed3de8a53945b999f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bb294a27ee73cbfcb3efdd229d8f02325e1a3577aa8c4e181c6e6256ed182d66",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.RO",
    "submitted_at": "2026-08-13T09:54:14Z",
    "title_canon_sha256": "a77512911f3617c30cb81b6060ba4b14af0574f21c3766b39c8dfdceb13dba25"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2608.13026",
    "kind": "arxiv",
    "version": 1
  }
}