Pith Number

pith:PYY2G2GN

pith:2021:PYY2G2GNQWA3ELHOMMS2KHMXTZ

not attested not anchored not stored refs pending

Enhancing Counterfactual Classification via Self-Training

Ligong Han, Max Biggs, Ruijiang Gao, Wei Sun

arxiv:2112.04461 v1 · 2021-12-08 · cs.LG · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PYY2G2GNQWA3ELHOMMS2KHMXTZ}

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	2026-07-05T03:39:09.740122Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e31a368cd8581b22cee6325a51d979e7c66dd7614dc0c27b94218f9818d4506

Aliases

arxiv: 2112.04461 · arxiv_version: 2112.04461v1 · doi: 10.48550/arxiv.2112.04461 · pith_short_12: PYY2G2GNQWA3 · pith_short_16: PYY2G2GNQWA3ELHO · pith_short_8: PYY2G2GN

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/PYY2G2GNQWA3ELHOMMS2KHMXTZ \
  | 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: 7e31a368cd8581b22cee6325a51d979e7c66dd7614dc0c27b94218f9818d4506

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d61ed9d4f0ad55082095c7a6c5c495f8e864415f4d3c4221ceb9cdeb0c67e1ab",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2021-12-08T18:42:58Z",
    "title_canon_sha256": "7794f923adf7588bcaf9eab5eb27a3dd2b99df3380f03fcbd3ab9e4abd7c6312"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.04461",
    "kind": "arxiv",
    "version": 1
  }
}