Pith Number

pith:QB3B4SD4

pith:2023:QB3B4SD4YSOXLJCVPPTTJUFFQF

not attested not anchored not stored refs pending

Space-Efficient Data Structures for Polyominoes and Bar Graphs

Cooper Sigrist, Katherine Ling, Magnus Berg, Shahin Kamali

arxiv:2311.16957 v1 · 2023-11-28 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QB3B4SD4YSOXLJCVPPTTJUFFQF}

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	2026-07-05T07:17:48.868184Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80761e487cc49d75a4557be734d0a5815ff8f34af9ac5c6de05b593623e471ca

Aliases

arxiv: 2311.16957 · arxiv_version: 2311.16957v1 · doi: 10.48550/arxiv.2311.16957 · pith_short_12: QB3B4SD4YSOX · pith_short_16: QB3B4SD4YSOXLJCV · pith_short_8: QB3B4SD4

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/QB3B4SD4YSOXLJCVPPTTJUFFQF \
  | 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: 80761e487cc49d75a4557be734d0a5815ff8f34af9ac5c6de05b593623e471ca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "59f79fc31f36f3f5458d92d77226563e08e49547047ae4bf9ecbebfcce068228",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2023-11-28T17:04:27Z",
    "title_canon_sha256": "9d678bcbe0e187fca9ffec5858a58900ecd45041cc74dab68fe4a59b6ffae3bd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2311.16957",
    "kind": "arxiv",
    "version": 1
  }
}