Pith Number

pith:YBRI7ICD

pith:2021:YBRI7ICDWHT7AF6DGMBP36TGE4

not attested not anchored not stored refs pending

1st Place Solution for ICDAR 2021 Competition on Mathematical Formula Detection

Dengyi Gu, Peiyang Ning, Rong Xiao, Shanjun Li, Xianbiao Qi, Yihao Chen, Yuxiang Zhong

arxiv:2107.05534 v1 · 2021-07-12 · cs.CV · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YBRI7ICDWHT7AF6DGMBP36TGE4}

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	2026-07-05T02:57:03.740259Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c0628fa043b1e7f017c33302fdfa662715c5a411ee312c21edca3ede4dbf6e32

Aliases

arxiv: 2107.05534 · arxiv_version: 2107.05534v1 · doi: 10.48550/arxiv.2107.05534 · pith_short_12: YBRI7ICDWHT7 · pith_short_16: YBRI7ICDWHT7AF6D · pith_short_8: YBRI7ICD

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/YBRI7ICDWHT7AF6DGMBP36TGE4 \
  | 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: c0628fa043b1e7f017c33302fdfa662715c5a411ee312c21edca3ede4dbf6e32

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ae756129cfaaa14ac4406bf95ef30f6c1ce7b1dea7c8306b71a3a2d306aaf9b2",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-07-12T16:03:16Z",
    "title_canon_sha256": "751d7561e601bd69c130d417571ab8265696b91853fe5682c554d34282faae1e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.05534",
    "kind": "arxiv",
    "version": 1
  }
}