Pith Number

pith:REMS65A4

pith:2018:REMS65A442RR4PAT2RS3UXGRWO

not attested not anchored not stored refs pending

Geometrical analysis of polynomial lens distortion models

Antonio Vald\'es, Jos\'e I. Ronda

arxiv:1804.03584 v2 · 2018-04-10 · 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{REMS65A442RR4PAT2RS3UXGRWO}

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	2026-05-18T00:09:35.769922Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

89192f741ce6a31e3c13d465ba5cd1b38e5b4f303f7f9d865f543d6411f48372

Aliases

arxiv: 1804.03584 · arxiv_version: 1804.03584v2 · doi: 10.48550/arxiv.1804.03584 · pith_short_12: REMS65A442RR · pith_short_16: REMS65A442RR4PAT · pith_short_8: REMS65A4

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/REMS65A442RR4PAT2RS3UXGRWO \
  | 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: 89192f741ce6a31e3c13d465ba5cd1b38e5b4f303f7f9d865f543d6411f48372

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e7e6e8be6bb9c93f32fc51d408773598c6a06c4fc2370934e0c05333fe24cc6a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-04-10T15:16:05Z",
    "title_canon_sha256": "3386c48c0ee83b36ddd7c7c84b0271b45bd8537e57b60538b9eab262f59a2274"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.03584",
    "kind": "arxiv",
    "version": 2
  }
}