Pith Number

pith:R4NJBLVY

pith:2026:R4NJBLVYGONAQ5FU2WN4MZKNI6

not attested not anchored not stored refs pending

SIGMA: Semantic Identifier Grouping for Molecular Autoregression

Fei Dou, Jinbo Bi, Minghu Song, Xinyu Wang

arxiv:2603.25062 v2 · 2026-03-26 · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{R4NJBLVYGONAQ5FU2WN4MZKNI6}

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	2026-08-04T00:36:18.455456Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f1a90aeb8339a0874b4d59bc6654d4786769b5362b7657934da1c196c6c264e

Aliases

arxiv: 2603.25062 · arxiv_version: 2603.25062v2 · doi: 10.48550/arxiv.2603.25062 · pith_short_12: R4NJBLVYGONA · pith_short_16: R4NJBLVYGONAQ5FU · pith_short_8: R4NJBLVY

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/R4NJBLVYGONAQ5FU2WN4MZKNI6 \
  | 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: 8f1a90aeb8339a0874b4d59bc6654d4786769b5362b7657934da1c196c6c264e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2a4e22bdc3b88b97f15271f60e59cfe69fdf04ec04bf7784a8533f1e493730b0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-03-26T05:55:17Z",
    "title_canon_sha256": "6ba74554eeaa6fd99ba27fbfad1472ee261ecf11f4231f6afcfd3c787a7b24ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2603.25062",
    "kind": "arxiv",
    "version": 2
  }
}