Pith Number

pith:PK2BUOS4

pith:2026:PK2BUOS4FCO4FYJX7QKMRRSK5U

not attested not anchored not stored refs pending

Closed-loop Auto Research for Molecular Property Prediction: Discovering and Certifying Generalizable Improvements

Chenyan Xiong, Guolin Ke, Jingjie Ning, Ji Zeng, Xiaochuan Li

arxiv:2606.22731 v1 · 2026-06-22 · cs.AI · cs.MA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PK2BUOS4FCO4FYJX7QKMRRSK5U}

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	2026-06-23T02:13:45.876805Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ab41a3a5c289dc2e137fc14c8c64aed0b80e4406a49d86aef9173546477d4df

Aliases

arxiv: 2606.22731 · arxiv_version: 2606.22731v1 · doi: 10.48550/arxiv.2606.22731 · pith_short_12: PK2BUOS4FCO4 · pith_short_16: PK2BUOS4FCO4FYJX · pith_short_8: PK2BUOS4

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/PK2BUOS4FCO4FYJX7QKMRRSK5U \
  | 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: 7ab41a3a5c289dc2e137fc14c8c64aed0b80e4406a49d86aef9173546477d4df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "146e1dae71c89d85da6c4f4b57cfdbd8d7bdc28c8769f50ff24abae16477af5f",
    "cross_cats_sorted": [
      "cs.MA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2026-06-22T00:18:27Z",
    "title_canon_sha256": "79ed2f3a853f731870f27611d33b21b3fbc71805fb6e843217a018764210b171"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.22731",
    "kind": "arxiv",
    "version": 1
  }
}