Pith Number

pith:AFDWEOBA

pith:2019:AFDWEOBA4CBZBUXL2R6MU2F2TQ

not attested not anchored not stored refs pending

Dynamic Maintenance of the Lower Envelope of Pseudo-Lines

Dan Halperin, Pankaj K. Agarwal, Ravid Cohen, Wolfgang Mulzer

arxiv:1902.09565 v1 · 2019-02-25 · cs.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AFDWEOBA4CBZBUXL2R6MU2F2TQ}

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	2026-05-17T23:50:33.206005Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0147623820e08390d2ebd47cca68ba9c38faaf2cdd6e997f8c3d6948db9f13bf

Aliases

arxiv: 1902.09565 · arxiv_version: 1902.09565v1 · doi: 10.48550/arxiv.1902.09565 · pith_short_12: AFDWEOBA4CBZ · pith_short_16: AFDWEOBA4CBZBUXL · pith_short_8: AFDWEOBA

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/AFDWEOBA4CBZBUXL2R6MU2F2TQ \
  | 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: 0147623820e08390d2ebd47cca68ba9c38faaf2cdd6e997f8c3d6948db9f13bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3a6389019f0818d5699cc2185ef35183675ddccf56b247ed416006df7ab0c5e3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2019-02-25T19:02:52Z",
    "title_canon_sha256": "bdeb1d1e9c197995bafbf579d8195414efe538dd59fef4b7c17ecb9d093dcc53"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.09565",
    "kind": "arxiv",
    "version": 1
  }
}