Pith Number

pith:SPPHEK6Y

pith:2021:SPPHEK6YVPVN7BOECG5IVNTCBJ

not attested not anchored not stored refs pending

Improving Structured Text Recognition with Regular Expression Biasing

Baoguang Shi, Cha Zhang, Dinei Florencio, Wenfeng Cheng, Yijuan Lu

arxiv:2111.06738 v1 · 2021-11-10 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SPPHEK6YVPVN7BOECG5IVNTCBJ}

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.

Cited by

1 paper in Pith

Automated Extraction of Acronym-Expansion Pairs from Scientific Papers

Receipt and verification

First computed	2026-07-05T03:31:17.180988Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

93de722bd8abeadf85c411ba8ab6620a727e1a5f522d774dd5fc49e91cc5b9f7

Aliases

arxiv: 2111.06738 · arxiv_version: 2111.06738v1 · doi: 10.48550/arxiv.2111.06738 · pith_short_12: SPPHEK6YVPVN · pith_short_16: SPPHEK6YVPVN7BOE · pith_short_8: SPPHEK6Y

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/SPPHEK6YVPVN7BOECG5IVNTCBJ \
  | 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: 93de722bd8abeadf85c411ba8ab6620a727e1a5f522d774dd5fc49e91cc5b9f7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d77110fa3df7ed8e95a147df6839c671c48faa28d9b829f989430f811038f8f7",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-11-10T23:12:05Z",
    "title_canon_sha256": "74f369bc5f1b406ddb6b9497a15d5aba3962a3802a6e811bc40847942384d692"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.06738",
    "kind": "arxiv",
    "version": 1
  }
}