Pith Number

pith:ELF732OY

pith:2021:ELF732OYCUHS7RHTYO6XAZMA4J

not attested not anchored not stored refs pending

RockNER: A Simple Method to Create Adversarial Examples for Evaluating the Robustness of Named Entity Recognition Models

Bill Yuchen Lin, Jun Yan, Ryan Moreno, Wenyang Gao, Xiang Ren

arxiv:2109.05620 v1 · 2021-09-12 · 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{ELF732OYCUHS7RHTYO6XAZMA4J}

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	2026-07-05T03:13:40.677754Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

22cbfde9d8150f2fc4f3c3bd706580e2568991311e3ce6c6e5dba7c0d283d72b

Aliases

arxiv: 2109.05620 · arxiv_version: 2109.05620v1 · doi: 10.48550/arxiv.2109.05620 · pith_short_12: ELF732OYCUHS · pith_short_16: ELF732OYCUHS7RHT · pith_short_8: ELF732OY

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/ELF732OYCUHS7RHTYO6XAZMA4J \
  | 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: 22cbfde9d8150f2fc4f3c3bd706580e2568991311e3ce6c6e5dba7c0d283d72b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c4e5c868e5465d3271269d5f37b2dd00b50c6ae6b5fe17d4ed682f3b947d863e",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2021-09-12T21:30:21Z",
    "title_canon_sha256": "e05621a6ef08ba5ed41a69e735c487fb13e51b0c49e52c7d4bfd8abe67f4b406"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.05620",
    "kind": "arxiv",
    "version": 1
  }
}