Pith Number

pith:FNSCGYC5

pith:2014:FNSCGYC5P33I4V6QQXKLDLIDCF

not attested not anchored not stored refs pending

Model theoretic properties of the Urysohn sphere

Caroline Terry, Gabriel Conant

arxiv:1401.2132 v3 · 2014-01-09 · math.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FNSCGYC5P33I4V6QQXKLDLIDCF}

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	2026-05-18T00:08:01.132956Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2b6423605d7ef68e57d085d4b1ad03117d4503111bba0c1666c066c816736bc4

Aliases

arxiv: 1401.2132 · arxiv_version: 1401.2132v3 · doi: 10.48550/arxiv.1401.2132 · pith_short_12: FNSCGYC5P33I · pith_short_16: FNSCGYC5P33I4V6Q · pith_short_8: FNSCGYC5

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/FNSCGYC5P33I4V6QQXKLDLIDCF \
  | 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: 2b6423605d7ef68e57d085d4b1ad03117d4503111bba0c1666c066c816736bc4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "54f39fd1a1eb98f51443a59b91f0a85898b6164349a46cb23160ef09c42076fa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2014-01-09T19:35:05Z",
    "title_canon_sha256": "53d6f7f568e1a72d28a8829e3663959bb47699edaded3f820a559d38b6573776"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.2132",
    "kind": "arxiv",
    "version": 3
  }
}