Pith Number

pith:QITSBDEW

pith:2019:QITSBDEWBPBV6SK7XRYRMLJMU6

not attested not anchored not stored refs pending

Classifying Convex Bodies by their Contact and Intersection Graphs

Anders Aamand, Jakob B{\ae}k Tejs Knudsen, Mikkel Abrahamsen, Peter Michael Reichstein Rasmussen

arxiv:1902.01732 v1 · 2019-02-05 · 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{QITSBDEWBPBV6SK7XRYRMLJMU6}

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	2026-05-17T23:54:46.907002Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8227208c960bc35f495fbc71162d2ca7a9fefc5b49fa6443760ace6fd4d446ac

Aliases

arxiv: 1902.01732 · arxiv_version: 1902.01732v1 · doi: 10.48550/arxiv.1902.01732 · pith_short_12: QITSBDEWBPBV · pith_short_16: QITSBDEWBPBV6SK7 · pith_short_8: QITSBDEW

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/QITSBDEWBPBV6SK7XRYRMLJMU6 \
  | 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: 8227208c960bc35f495fbc71162d2ca7a9fefc5b49fa6443760ace6fd4d446ac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3527265fd20c9c32f9f28d9ee74ddc521a4be9bcdfd02e4783a9073c810958a2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2019-02-05T15:12:57Z",
    "title_canon_sha256": "119bc7735e4f2bbac98b847f2e04a5c03d9dfbb033d3a11ac93edc02f4aa4090"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.01732",
    "kind": "arxiv",
    "version": 1
  }
}