Pith Number

pith:4CBQMAV2

pith:2019:4CBQMAV2IBX5AL7UEMX6IXPKBH

not attested not anchored not stored refs pending

Simplification of Polyline Bundles

Joachim Spoerhase, Johannes Zink, Sabine Storandt

arxiv:1907.05296 v2 · 2019-07-11 · cs.CG · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4CBQMAV2IBX5AL7UEMX6IXPKBH}

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	2026-07-05T01:12:01.816546Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0830602ba406fd02ff4232fe45dea09ec055993e1528a2d2ebad463fbf1eea1

Aliases

arxiv: 1907.05296 · arxiv_version: 1907.05296v2 · doi: 10.48550/arxiv.1907.05296 · pith_short_12: 4CBQMAV2IBX5 · pith_short_16: 4CBQMAV2IBX5AL7U · pith_short_8: 4CBQMAV2

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/4CBQMAV2IBX5AL7UEMX6IXPKBH \
  | 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: e0830602ba406fd02ff4232fe45dea09ec055993e1528a2d2ebad463fbf1eea1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "286c4d971ef6d1be66018b0249398ed97ebfc3d72db77dc50a0290a1b96cf532",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2019-07-11T15:11:30Z",
    "title_canon_sha256": "590de5ee1b153e864ef70e1acdc33bcc8cb681b8b9ec12be68f0f5c086ea313f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.05296",
    "kind": "arxiv",
    "version": 2
  }
}