Pith Number

pith:6OWMPBMU

pith:2008:6OWMPBMUQJTKIF2AL3FFDJH73X

not attested not anchored not stored refs pending

On positively curved 4-manifolds with S^1-symmetry

Jin Hong Kim

arxiv:0810.1232 v1 · 2008-10-07 · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6OWMPBMUQJTKIF2AL3FFDJH73X}

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	2026-05-18T04:09:04.056539Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f3acc785948266a417405eca51a4ffddcda3d7102eb343b1ada268525b3fdfdc

Aliases

arxiv: 0810.1232 · arxiv_version: 0810.1232v1 · doi: 10.48550/arxiv.0810.1232 · pith_short_12: 6OWMPBMUQJTK · pith_short_16: 6OWMPBMUQJTKIF2A · pith_short_8: 6OWMPBMU

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/6OWMPBMUQJTKIF2AL3FFDJH73X \
  | 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: f3acc785948266a417405eca51a4ffddcda3d7102eb343b1ada268525b3fdfdc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7c7bc85ef6a7e9f33d6dfd76c5ed3a37c63609816e6a1ae1bfb15408f8a73f04",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2008-10-07T17:50:04Z",
    "title_canon_sha256": "250e09fc344b293ae94ff8a85ff65ad05924f115281b75e768cbdf78f55f2706"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0810.1232",
    "kind": "arxiv",
    "version": 1
  }
}