Pith Number

pith:XYBTJSI3

pith:2017:XYBTJSI3GHZCJ4PCBFT6VR3SDL

not attested not anchored not stored refs pending

A family of compact semitoric systems with two focus-focus singularities

Joseph Palmer, Sonja Hohloch

arxiv:1710.05746 v3 · 2017-10-16 · math.SG · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XYBTJSI3GHZCJ4PCBFT6VR3SDL}

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	2026-05-18T00:03:24.920824Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

be0334c91b31f224f1e20967eac7721ae5ed2fc6322d2ecfe93180c956ee1dc4

Aliases

arxiv: 1710.05746 · arxiv_version: 1710.05746v3 · doi: 10.48550/arxiv.1710.05746 · pith_short_12: XYBTJSI3GHZC · pith_short_16: XYBTJSI3GHZCJ4PC · pith_short_8: XYBTJSI3

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/XYBTJSI3GHZCJ4PCBFT6VR3SDL \
  | 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: be0334c91b31f224f1e20967eac7721ae5ed2fc6322d2ecfe93180c956ee1dc4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a56b8fc52c98d54f7cfa3884540cc2fb8f77ed1a8f0c4280139cddba7a477e26",
    "cross_cats_sorted": [
      "math.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2017-10-16T14:36:10Z",
    "title_canon_sha256": "6b0ee44e40ed3641d39d4979021b258f7e38753c9be6a386f24e1adb22dbd82d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.05746",
    "kind": "arxiv",
    "version": 3
  }
}