Pith Number

pith:7WFIMR54

pith:2005:7WFIMR54AINCXJI34KOONLOKMT

not attested not anchored not stored refs pending

Small Exotic 4-manifolds with b_2^+=3

Andras I Stipsicz, Zoltan Szabo

arxiv:math/0501273 v1 · 2005-01-18 · math.GT · math.SG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7WFIMR54AINCXJI34KOONLOKMT}

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	2026-07-04T14:39:32.313335Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd8a8647bc021a2ba51be29ce6adca64fc6b65ba035582e25bdfb22c562a48c2

Aliases

arxiv: math/0501273 · arxiv_version: math/0501273v1 · doi: 10.48550/arxiv.math/0501273 · pith_short_12: 7WFIMR54AINC · pith_short_16: 7WFIMR54AINCXJI3 · pith_short_8: 7WFIMR54

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/7WFIMR54AINCXJI34KOONLOKMT \
  | 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: fd8a8647bc021a2ba51be29ce6adca64fc6b65ba035582e25bdfb22c562a48c2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f58011f6f1580700c5d00a6e3ce2fc3859fe95a50f2cb45213a04597b2333832",
    "cross_cats_sorted": [
      "math.SG"
    ],
    "license": "",
    "primary_cat": "math.GT",
    "submitted_at": "2005-01-18T16:21:07Z",
    "title_canon_sha256": "ab7ada095ccd65350a8dbcc8809649dd46744cc1c7ea9529dfa9dc75243e72be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0501273",
    "kind": "arxiv",
    "version": 1
  }
}