Pith Number

pith:CEN5YW53

pith:2013:CEN5YW53B4HMTXS6C5CVZYQBNA

not attested not anchored not stored refs pending

A variational algorithm for the detection of line segments

E. Beretta, M. Grasmair, M. Muszkieta, O. Scherzer

arxiv:1306.2466 v1 · 2013-06-11 · math.NA · math.AP · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CEN5YW53B4HMTXS6C5CVZYQBNA}

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	2026-05-18T03:21:11.304533Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

111bdc5bbb0f0ec9de5e17455ce201681f37571a07dbe9c1ce577b49ce5b3424

Aliases

arxiv: 1306.2466 · arxiv_version: 1306.2466v1 · doi: 10.48550/arxiv.1306.2466 · pith_short_12: CEN5YW53B4HM · pith_short_16: CEN5YW53B4HMTXS6 · pith_short_8: CEN5YW53

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/CEN5YW53B4HMTXS6C5CVZYQBNA \
  | 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: 111bdc5bbb0f0ec9de5e17455ce201681f37571a07dbe9c1ce577b49ce5b3424

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3c7d55d28e981d6d90a0246d0dda90c5da81fbdab655cc3d4507d7baeabcc4b6",
    "cross_cats_sorted": [
      "math.AP",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2013-06-11T09:49:39Z",
    "title_canon_sha256": "ff70deda062873fba949e40c5414b1428b9f25c00f035fea0e0e4ba180be9d7b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.2466",
    "kind": "arxiv",
    "version": 1
  }
}