Pith Number

pith:7VPRTTSK

pith:2013:7VPRTTSKK5MPGLEVTI4JU35MYN

not attested not anchored not stored refs pending

Symplectic fillings of Seifert fibered spaces

Laura Starkston

arxiv:1304.2420 v3 · 2013-04-08 · 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{7VPRTTSKK5MPGLEVTI4JU35MYN}

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	2026-05-18T01:35:16.865757Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd5f19ce4a5758f32c959a389a6facc34c3c59a6854be01e68652f983bec6d88

Aliases

arxiv: 1304.2420 · arxiv_version: 1304.2420v3 · doi: 10.48550/arxiv.1304.2420 · pith_short_12: 7VPRTTSKK5MP · pith_short_16: 7VPRTTSKK5MPGLEV · pith_short_8: 7VPRTTSK

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/7VPRTTSKK5MPGLEVTI4JU35MYN \
  | 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: fd5f19ce4a5758f32c959a389a6facc34c3c59a6854be01e68652f983bec6d88

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "40acaeb74efb7f273e72c4c657482bb9b9420cb578956df95e39bc19522e6b4e",
    "cross_cats_sorted": [
      "math.SG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2013-04-08T21:10:13Z",
    "title_canon_sha256": "0d16761dfe458fc49a078f0fe571bfdaab4aeb22f5d9d54fcbdd2690a5d2c946"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.2420",
    "kind": "arxiv",
    "version": 3
  }
}