Pith Number

pith:LFXQSXQ6

pith:2015:LFXQSXQ6POWXIBTKZ4NBUV5CPQ

not attested not anchored not stored refs pending

A Metric for genus-zero surfaces

Joel Hass, Patrice Koehl

arxiv:1507.00798 v1 · 2015-07-03 · math.DG · math.GT · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LFXQSXQ6POWXIBTKZ4NBUV5CPQ}

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	2026-05-18T01:37:22.683370Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

596f095e1e7bad74066acf1a1a57a27c20229354d7108870a02ff38e55a256b1

Aliases

arxiv: 1507.00798 · arxiv_version: 1507.00798v1 · doi: 10.48550/arxiv.1507.00798 · pith_short_12: LFXQSXQ6POWX · pith_short_16: LFXQSXQ6POWXIBTK · pith_short_8: LFXQSXQ6

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/LFXQSXQ6POWXIBTKZ4NBUV5CPQ \
  | 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: 596f095e1e7bad74066acf1a1a57a27c20229354d7108870a02ff38e55a256b1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "deea7e5c5794ab776300fb8cbe422050b415afceb83344d25f27eb5525588b4d",
    "cross_cats_sorted": [
      "math.GT",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2015-07-03T01:26:01Z",
    "title_canon_sha256": "428ee4037c0bec32ff5893f866864754d0b72423c8a63bbd834ffe58fc246be0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.00798",
    "kind": "arxiv",
    "version": 1
  }
}