Pith Number

pith:PY4ZIFI4

pith:2015:PY4ZIFI4RGNIDGGDHABAAQI4TZ

not attested not anchored not stored refs pending

Flat origami and constructions

Anton Petrunin

arxiv:1512.03714 v2 · 2015-11-26 · math.HO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PY4ZIFI4RGNIDGGDHABAAQI4TZ}

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	2026-05-18T00:39:40.674607Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e3994151c899a8198c3380200411c9e5616a3c6a666fe94b4436c698b775857

Aliases

arxiv: 1512.03714 · arxiv_version: 1512.03714v2 · doi: 10.48550/arxiv.1512.03714 · pith_short_12: PY4ZIFI4RGNI · pith_short_16: PY4ZIFI4RGNIDGGD · pith_short_8: PY4ZIFI4

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/PY4ZIFI4RGNIDGGDHABAAQI4TZ \
  | 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: 7e3994151c899a8198c3380200411c9e5616a3c6a666fe94b4436c698b775857

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6a593bcb7bbe6481f7f30d3a73d9770f2ab400b9ac3e36244ea501b4fa174446",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "math.HO",
    "submitted_at": "2015-11-26T12:08:44Z",
    "title_canon_sha256": "c5331bfc685a105aee10162ac9e8fc0cd4ae64e202dc96dffc618e953b006a37"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.03714",
    "kind": "arxiv",
    "version": 2
  }
}