Pith Number

pith:3EVK3UJ6

pith:2018:3EVK3UJ6E6IBJRHV56VU4RU6TV

not attested not anchored not stored refs pending

Ulam Floating Body

Boaz A. Slomka, Elisabeth M. Werner, Han Huang

arxiv:1803.08224 v2 · 2018-03-22 · 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{3EVK3UJ6E6IBJRHV56VU4RU6TV}

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	2026-05-18T00:16:07.643034Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d92aadd13e279014c4f5efab4e469e9d547ca61b3dbe672cc0f26ef36a0cb36d

Aliases

arxiv: 1803.08224 · arxiv_version: 1803.08224v2 · doi: 10.48550/arxiv.1803.08224 · pith_short_12: 3EVK3UJ6E6IB · pith_short_16: 3EVK3UJ6E6IBJRHV · pith_short_8: 3EVK3UJ6

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/3EVK3UJ6E6IBJRHV56VU4RU6TV \
  | 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: d92aadd13e279014c4f5efab4e469e9d547ca61b3dbe672cc0f26ef36a0cb36d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "838566e7bdba58d51ae1b19309c81d2c2a6cb5f67d7339e00a00ddb7821c5d29",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2018-03-22T04:28:03Z",
    "title_canon_sha256": "88379cc7051dd0d2e9f8e41fd2916459fb77e924f1d001d1f7f615fae0ab973d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.08224",
    "kind": "arxiv",
    "version": 2
  }
}