Pith Number

pith:DUN4ME2V

pith:2016:DUN4ME2VMXF36LGZLDIG7W5CVC

not attested not anchored not stored refs pending

A Generic Method for Automatic Ground Truth Generation of Camera-captured Documents

Andreas Dengel, Koichi Kise, Marcus Liwicki, Masakazu Iwamura, Muhammad Imran Malik, Muhammad Zeshan Afzal, Sheraz Ahmed

arxiv:1605.01189 v1 · 2016-05-04 · 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{DUN4ME2VMXF36LGZLDIG7W5CVC}

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	2026-05-18T01:15:37.570888Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1d1bc6135565cbbf2cd958d06fdba2a8b1e5bc6ccce2664ac4ff089816405678

Aliases

arxiv: 1605.01189 · arxiv_version: 1605.01189v1 · doi: 10.48550/arxiv.1605.01189 · pith_short_12: DUN4ME2VMXF3 · pith_short_16: DUN4ME2VMXF36LGZ · pith_short_8: DUN4ME2V

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/DUN4ME2VMXF36LGZLDIG7W5CVC \
  | 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: 1d1bc6135565cbbf2cd958d06fdba2a8b1e5bc6ccce2664ac4ff089816405678

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "327c6872b96767f3a13bbf0fd4b4f8a2d94e1a9fede4d5a9e82e1c5e526baf0e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2016-05-04T09:25:04Z",
    "title_canon_sha256": "ab1657f0cbe5d74862816bf6302946a03a31fb45ad63fb72b09d91f1b85e79ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.01189",
    "kind": "arxiv",
    "version": 1
  }
}