Pith Number

pith:RE636PB5

pith:2012:RE636PB5SV5JH7J4ZK2UPZZIL4

not attested not anchored not stored refs pending

Geometric properties of the tetrablock

W{\l}odzimierz Zwonek

arxiv:1209.5711 v1 · 2012-09-25 · math.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RE636PB5SV5JH7J4ZK2UPZZIL4}

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	2026-05-18T01:09:26.325188Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

893dbf3c3d957a93fd3ccab547e7285f05b0f1f6c79656495ee0e46c6a8a123b

Aliases

arxiv: 1209.5711 · arxiv_version: 1209.5711v1 · doi: 10.48550/arxiv.1209.5711 · pith_short_12: RE636PB5SV5J · pith_short_16: RE636PB5SV5JH7J4 · pith_short_8: RE636PB5

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/RE636PB5SV5JH7J4ZK2UPZZIL4 \
  | 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: 893dbf3c3d957a93fd3ccab547e7285f05b0f1f6c79656495ee0e46c6a8a123b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a22257d291c47466d9f1fcf22f8f137d2ce17cc822344efabbb105977877975e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2012-09-25T18:23:17Z",
    "title_canon_sha256": "c054b59d0a1687b7c77a45bbff9cad89a34941df08ec916411553a6aac55babd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.5711",
    "kind": "arxiv",
    "version": 1
  }
}