Pith Number

pith:3MUR4VDS

pith:2014:3MUR4VDS7FTT3AFGOL2HN4S7BL

not attested not anchored not stored refs pending

Epireflective subcategories of Top, $T_2$Unif, Unif, closed under epimorphic images, or being algebraic

E. Makai Jr

arxiv:1407.1210 v1 · 2014-07-04 · math.CT · math.GN

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3MUR4VDS7FTT3AFGOL2HN4S7BL}

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	2026-05-18T02:48:18.394971Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

db291e5472f9673d80a672f476f25f0acd5fe0aca199942143753bc209b9df0a

Aliases

arxiv: 1407.1210 · arxiv_version: 1407.1210v1 · doi: 10.48550/arxiv.1407.1210 · pith_short_12: 3MUR4VDS7FTT · pith_short_16: 3MUR4VDS7FTT3AFG · pith_short_8: 3MUR4VDS

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/3MUR4VDS7FTT3AFGOL2HN4S7BL \
  | 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: db291e5472f9673d80a672f476f25f0acd5fe0aca199942143753bc209b9df0a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ba1c191fcb59d864a1bfbadf0c34c754286ac0af1fe867f3ad98b16efd95f17f",
    "cross_cats_sorted": [
      "math.GN"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CT",
    "submitted_at": "2014-07-04T12:56:42Z",
    "title_canon_sha256": "668bbe2be7f57d961bacfd65d19568c3597e95fa8593ac2fda29055a47545dfa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.1210",
    "kind": "arxiv",
    "version": 1
  }
}