Pith Number

pith:3ER2FKZP

pith:2012:3ER2FKZPOPKXGQ2QKXFMATSXAD

not attested not anchored not stored refs pending

New tools for classifying Hamiltonian circle actions with isolated fixed points

Leonor Godinho, Silvia Sabatini

arxiv:1206.3195 v1 · 2012-06-14 · 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{3ER2FKZPOPKXGQ2QKXFMATSXAD}

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	2026-05-18T03:53:32.299754Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d923a2ab2f73d573435055cac04e5700f9d07e866d2526387e08a88a73f954af

Aliases

arxiv: 1206.3195 · arxiv_version: 1206.3195v1 · doi: 10.48550/arxiv.1206.3195 · pith_short_12: 3ER2FKZPOPKX · pith_short_16: 3ER2FKZPOPKXGQ2Q · pith_short_8: 3ER2FKZP

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/3ER2FKZPOPKXGQ2QKXFMATSXAD \
  | 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: d923a2ab2f73d573435055cac04e5700f9d07e866d2526387e08a88a73f954af

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2fb5d9484fd65bcb16fbe494c815fb95fd8fb563393fb054463622973cfee8ff",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2012-06-14T17:47:58Z",
    "title_canon_sha256": "5c07300b810d50ea951bd01ebdf213a8f63631f4346eb92fea838ff9ff564333"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.3195",
    "kind": "arxiv",
    "version": 1
  }
}