Pith Number

pith:FRUMCPD7

pith:2022:FRUMCPD7MPKT53SIQAOD55AID7

not attested not anchored not stored refs pending

Orthogonal Fold & Cut

Dylan Hendrickson, Erik D. Demaine, Hayashi Ani, Josh Brunner, Martin L. Demaine, Rachana Madhukara, Victor Luo

arxiv:2202.01293 v2 · 2022-02-02 · cs.CG · math.MG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FRUMCPD7MPKT53SIQAOD55AID7}

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	2026-07-05T07:12:45.959538Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c68c13c7f63d53eee48801c3ef4081fe2fadfa301e026cace1600c83642adf2

Aliases

arxiv: 2202.01293 · arxiv_version: 2202.01293v2 · doi: 10.48550/arxiv.2202.01293 · pith_short_12: FRUMCPD7MPKT · pith_short_16: FRUMCPD7MPKT53SI · pith_short_8: FRUMCPD7

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/FRUMCPD7MPKT53SIQAOD55AID7 \
  | 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: 2c68c13c7f63d53eee48801c3ef4081fe2fadfa301e026cace1600c83642adf2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1e83a59c077949982c2e2084278b258c3841ff1618dcb3110782a3f17feec0ff",
    "cross_cats_sorted": [
      "math.MG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2022-02-02T21:33:11Z",
    "title_canon_sha256": "57a41784882c02307b5500d30ff78d997f04166df6b07842070d98340b6f7e20"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2202.01293",
    "kind": "arxiv",
    "version": 2
  }
}