Pith Number

pith:WQ4HSBZD

pith:2022:WQ4HSBZD5US4KWD6A6QCL6UPOS

not attested not anchored not stored refs pending

Automatic Detection and Classification of Symbols in Engineering Drawings

Pranav Pandey, Sibsambhu Kar, Sourish Sarkar

arxiv:2204.13277 v1 · 2022-04-28 · 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{WQ4HSBZD5US4KWD6A6QCL6UPOS}

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

A document is worth a structured record: Principled inductive bias design for document recognition

Receipt and verification

First computed	2026-07-05T04:18:33.146398Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b438790723ed25c5587e07a025fa8f74b84ac84c94c058162a438c13cc620c40

Aliases

arxiv: 2204.13277 · arxiv_version: 2204.13277v1 · doi: 10.48550/arxiv.2204.13277 · pith_short_12: WQ4HSBZD5US4 · pith_short_16: WQ4HSBZD5US4KWD6 · pith_short_8: WQ4HSBZD

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/WQ4HSBZD5US4KWD6A6QCL6UPOS \
  | 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: b438790723ed25c5587e07a025fa8f74b84ac84c94c058162a438c13cc620c40

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eb17ab39e7efdd828861667641dfb3b33706da5c9e5ba5328b1aff6d72a091f1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2022-04-28T04:14:14Z",
    "title_canon_sha256": "c94a7e9b78b58266776d6c87495d7a3f2019f2cc74a5fb760b8c4787e89c2583"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2204.13277",
    "kind": "arxiv",
    "version": 1
  }
}