Pith Number

pith:2FIF2XGE

pith:2021:2FIF2XGEHK7MNC45JOXGFMQJBI

not attested not anchored not stored refs pending

StructuralLM: Structural Pre-training for Form Understanding

Bin Bi, Chenliang Li, Fei Huang, Luo Si, Ming Yan, Songfang Huang, Wei Wang

arxiv:2105.11210 v1 · 2021-05-24 · 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{2FIF2XGEHK7MNC45JOXGFMQJBI}

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	2026-07-05T02:42:36.454350Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d1505d5cc43abec68b9d4bae62b2090a351b139ecb3c2bbf5d359b7722f82dce

Aliases

arxiv: 2105.11210 · arxiv_version: 2105.11210v1 · doi: 10.48550/arxiv.2105.11210 · pith_short_12: 2FIF2XGEHK7M · pith_short_16: 2FIF2XGEHK7MNC45 · pith_short_8: 2FIF2XGE

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/2FIF2XGEHK7MNC45JOXGFMQJBI \
  | 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: d1505d5cc43abec68b9d4bae62b2090a351b139ecb3c2bbf5d359b7722f82dce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5bc5ae501dc860148ba55eadac6718edfb904a5528a0d5367d0bb2959f6cd120",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2021-05-24T11:33:20Z",
    "title_canon_sha256": "b32b433c08a60bee868bdd5e8537b12b3a6a030477b588c06a12fec90ed4811e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.11210",
    "kind": "arxiv",
    "version": 1
  }
}