Pith Number

pith:HQXRZYBQ

pith:2018:HQXRZYBQ6CWGCGMUPB7TXBBVOM

not attested not anchored not stored refs pending

Calamari - A High-Performance Tensorflow-based Deep Learning Package for Optical Character Recognition

Christian Reul, Christoph Wick, Frank Puppe

arxiv:1807.02004 v3 · 2018-07-05 · 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{HQXRZYBQ6CWGCGMUPB7TXBBVOM}

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

TexOCR: Advancing Document OCR Models for Compilable Page-to-LaTeX Reconstruction

Receipt and verification

First computed	2026-07-05T02:06:46.837972Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c2f1ce030f0ac611994787f3b8435731e9ee3d66459b60baf7bb5cc08ba658d

Aliases

arxiv: 1807.02004 · arxiv_version: 1807.02004v3 · doi: 10.48550/arxiv.1807.02004 · pith_short_12: HQXRZYBQ6CWG · pith_short_16: HQXRZYBQ6CWGCGMU · pith_short_8: HQXRZYBQ

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/HQXRZYBQ6CWGCGMUPB7TXBBVOM \
  | 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: 3c2f1ce030f0ac611994787f3b8435731e9ee3d66459b60baf7bb5cc08ba658d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "385f3587841f7bd0f8accf1a467dc195a41a09f09b82af2473198c0d214f9edc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-07-05T13:46:37Z",
    "title_canon_sha256": "9b26b5a0f5d930e18cc829aa820dfb9f62bf56e1b4a1d9dc1045f075d2a1eeae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.02004",
    "kind": "arxiv",
    "version": 3
  }
}