Pith Number

pith:VNWRPWNI

pith:2023:VNWRPWNI2YEXMXFAJGUKU2OFSG

not attested not anchored not stored refs pending

Geometric Wide-Angle Camera Calibration: A Review and Comparative Study

Alper Yilmaz, Binliang Wang, Grzegorz Jozkow, Jianzhu Huai, Yijia He, Yuan Zhuang, Yuxin Shao

arxiv:2306.09014 v2 · 2023-06-15 · eess.IV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VNWRPWNI2YEXMXFAJGUKU2OFSG}

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	2026-07-05T09:20:36.924007Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ab6d17d9a8d609765ca049a8aa69c5919de9841ec7755bc15db151362b9a1026

Aliases

arxiv: 2306.09014 · arxiv_version: 2306.09014v2 · doi: 10.48550/arxiv.2306.09014 · pith_short_12: VNWRPWNI2YEX · pith_short_16: VNWRPWNI2YEXMXFA · pith_short_8: VNWRPWNI

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/VNWRPWNI2YEXMXFAJGUKU2OFSG \
  | 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: ab6d17d9a8d609765ca049a8aa69c5919de9841ec7755bc15db151362b9a1026

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "14657ee64691625642b60458840b4f467e2229db4da3cfa8c0db2ba2b2a2d018",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2023-06-15T10:16:00Z",
    "title_canon_sha256": "3f1777f2e7c7a9020654b18043d547cd4bfe72e07986a488e8871f7576a5a5f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2306.09014",
    "kind": "arxiv",
    "version": 2
  }
}