Pith Number

pith:NEQGWJFZ

pith:2016:NEQGWJFZCMNJ4BYTCRX3TGAJK5

not attested not anchored not stored refs pending

Depth contours in arrangements of halfplanes

Micha Sharir, Sariel Har-Peled

arxiv:1609.07709 v2 · 2016-09-25 · 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{NEQGWJFZCMNJ4BYTCRX3TGAJK5}

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	2026-05-18T01:03:42.430245Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

69206b24b9131a9e0713146fb99809575311ab21221b6174d60b2dd62ea716f5

Aliases

arxiv: 1609.07709 · arxiv_version: 1609.07709v2 · doi: 10.48550/arxiv.1609.07709 · pith_short_12: NEQGWJFZCMNJ · pith_short_16: NEQGWJFZCMNJ4BYT · pith_short_8: NEQGWJFZ

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/NEQGWJFZCMNJ4BYTCRX3TGAJK5 \
  | 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: 69206b24b9131a9e0713146fb99809575311ab21221b6174d60b2dd62ea716f5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cee2991cb73c3a68e6476515485e93bfdf203cec0e5359df2a6cf51e4adea47b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2016-09-25T07:22:31Z",
    "title_canon_sha256": "ccd20125e5d473b505602f13ac44875f5a7989f8a07088322c698aea51624e70"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.07709",
    "kind": "arxiv",
    "version": 2
  }
}