Pith Number

pith:JZ5L2LTF

pith:2021:JZ5L2LTFUN5B4XPIW6KLIXUQZY

not attested not anchored not stored refs pending

Targeted Adversarial Training for Natural Language Understanding

Hao Cheng, Hoifung Poon, Ichiro Kobayashi, Jianfeng Gao, Lis Pereira, XiaoDong Liu

arxiv:2104.05847 v1 · 2021-04-12 · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JZ5L2LTFUN5B4XPIW6KLIXUQZY}

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	2026-07-05T02:31:25.953909Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4e7abd2e65a37a1e5de8b794b45e90ce196a24a977706dd467599715e5bc88aa

Aliases

arxiv: 2104.05847 · arxiv_version: 2104.05847v1 · doi: 10.48550/arxiv.2104.05847 · pith_short_12: JZ5L2LTFUN5B · pith_short_16: JZ5L2LTFUN5B4XPI · pith_short_8: JZ5L2LTF

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/JZ5L2LTFUN5B4XPIW6KLIXUQZY \
  | 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: 4e7abd2e65a37a1e5de8b794b45e90ce196a24a977706dd467599715e5bc88aa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6428a1f963d28201e024153f334a2ecd09055671d59afc86e4c0b80fdb571375",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2021-04-12T22:31:41Z",
    "title_canon_sha256": "d7e8a4f50bdf187f3fbfd3ca8efba3f55bff188c80685b5347e3a83169e18268"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.05847",
    "kind": "arxiv",
    "version": 1
  }
}