Pith Number

pith:WQJN4R3I

pith:2020:WQJN4R3INC4HRGUPKSW5UBXTLX

not attested not anchored not stored refs pending

A Gated and Bifurcated Stacked U-Net Module for Document Image Dewarping

Hmrishav Bandyopadhyay, Mita Nasipuri, Nibaran Das, Tanmoy Dasgupta

arxiv:2007.09824 v1 · 2020-07-20 · 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{WQJN4R3INC4HRGUPKSW5UBXTLX}

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	2026-07-05T01:20:29.576725Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b412de476868b8789a8f54adda06f35de5fb28c2d40388325fffec851669cdcf

Aliases

arxiv: 2007.09824 · arxiv_version: 2007.09824v1 · doi: 10.48550/arxiv.2007.09824 · pith_short_12: WQJN4R3INC4H · pith_short_16: WQJN4R3INC4HRGUP · pith_short_8: WQJN4R3I

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/WQJN4R3INC4HRGUPKSW5UBXTLX \
  | 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: b412de476868b8789a8f54adda06f35de5fb28c2d40388325fffec851669cdcf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e9475456004b67afe66d3efb72a17ca7bfc0464c26d062aa2003e674e1585845",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2020-07-20T01:22:05Z",
    "title_canon_sha256": "17d8cba83d2617d9a32fe0e4cae156861bf46456d8c05b7f6c49801d77f4dcd4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.09824",
    "kind": "arxiv",
    "version": 1
  }
}