Pith Number

pith:5UG4BS5G

pith:2017:5UG4BS5GBL45OFH5NKER5GY46U

not attested not anchored not stored refs pending

Removing Depth-Order Cycles Among Triangles: An Efficient Algorithm Generating Triangular Fragments

Mark de Berg

arxiv:1701.00679 v2 · 2017-01-03 · 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{5UG4BS5GBL45OFH5NKER5GY46U}

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	2026-05-18T00:46:55.246414Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ed0dc0cba60af9d714fd6a891e9b1cf51f28c265f03d8ed417f1c39dfd8ad09f

Aliases

arxiv: 1701.00679 · arxiv_version: 1701.00679v2 · doi: 10.48550/arxiv.1701.00679 · pith_short_12: 5UG4BS5GBL45 · pith_short_16: 5UG4BS5GBL45OFH5 · pith_short_8: 5UG4BS5G

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/5UG4BS5GBL45OFH5NKER5GY46U \
  | 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: ed0dc0cba60af9d714fd6a891e9b1cf51f28c265f03d8ed417f1c39dfd8ad09f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7bcfa72eab9f7e0dbf1bf61e412aaad42e4fcf02706bc018dfa33ec65880ab32",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2017-01-03T12:41:18Z",
    "title_canon_sha256": "5535abe47a183cf336d529b9f3c0feae198ecf54682e43e6e5a48be2a16860ba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.00679",
    "kind": "arxiv",
    "version": 2
  }
}