Pith Number

pith:7765CSVQ

pith:2019:7765CSVQ234S2E6XKAQBOFQ7SZ

not attested not anchored not stored refs pending

Some Polycubes Have No Edge Zipper Unfolding

David Eppstein, Erik D. Demaine, Joseph O'Rourke, Martin L. Demaine

arxiv:1907.08433 v3 · 2019-07-19 · cs.CG · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7765CSVQ234S2E6XKAQBOFQ7SZ}

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.

Cited by

1 paper in Pith

Unfolding Polyhedra

Receipt and verification

First computed	2026-07-05T04:25:07.398354Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fffdd14ab0d6f92d13d7502017161f966ed022b57ca5284bd6da823b68ec5797

Aliases

arxiv: 1907.08433 · arxiv_version: 1907.08433v3 · doi: 10.48550/arxiv.1907.08433 · pith_short_12: 7765CSVQ234S · pith_short_16: 7765CSVQ234S2E6X · pith_short_8: 7765CSVQ

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/7765CSVQ234S2E6XKAQBOFQ7SZ \
  | 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: fffdd14ab0d6f92d13d7502017161f966ed022b57ca5284bd6da823b68ec5797

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6cd991cbf7e82e5de44594b63bb21bedd5f84ecc8b61006b48286322b3f6f135",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2019-07-19T09:46:30Z",
    "title_canon_sha256": "568e995c6c5d9fd20e0e29bdb06208b555150e907b0a0a8555fbe55aef6a3ab0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.08433",
    "kind": "arxiv",
    "version": 3
  }
}