Pith Number

pith:ZI76VL7M

pith:2018:ZI76VL7MCDWDQI3Q263X2X3XUD

not attested not anchored not stored refs pending

Convex Pentagons with Positive Heesch Number

Teruhisa Sugimoto

arxiv:1802.00119 v2 · 2018-02-01 · 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{ZI76VL7MCDWDQI3Q263X2X3XUD}

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	2026-05-18T00:19:56.464439Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ca3feaafec10ec382370d7b77d5f77a0daf3cc48859a0753b942ab6f6746e84b

Aliases

arxiv: 1802.00119 · arxiv_version: 1802.00119v2 · doi: 10.48550/arxiv.1802.00119 · pith_short_12: ZI76VL7MCDWD · pith_short_16: ZI76VL7MCDWDQI3Q · pith_short_8: ZI76VL7M

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/ZI76VL7MCDWDQI3Q263X2X3XUD \
  | 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: ca3feaafec10ec382370d7b77d5f77a0daf3cc48859a0753b942ab6f6746e84b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "12f4b1642983df815f66aa9d1562386ccfbfffc3e83db300a5dc2d0334f9ab3f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2018-02-01T01:33:16Z",
    "title_canon_sha256": "c67550f1a4e15c42d937aed51a2805c4cb9b57dddd8c12d6be62566f5009f434"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.00119",
    "kind": "arxiv",
    "version": 2
  }
}