Pith Number

pith:ER2ZEM5V

pith:2011:ER2ZEM5VCFCHLWI4JGAFE36UYY

not attested not anchored not stored refs pending

Global geometry and topology of spacelike stationary surfaces in the 4-dimensional Lorentz space

Changping Wang, Peng Wang, Xiang Ma, Zhiyu Liu

arxiv:1103.4700 v6 · 2011-03-24 · math.DG · math.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ER2ZEM5VCFCHLWI4JGAFE36UYY}

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	2026-05-18T02:59:06.732576Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

24759233b5114475d91c4980526fd4c62c5fd53286ffeeda9bb3420b7c5acc39

Aliases

arxiv: 1103.4700 · arxiv_version: 1103.4700v6 · doi: 10.48550/arxiv.1103.4700 · pith_short_12: ER2ZEM5VCFCH · pith_short_16: ER2ZEM5VCFCHLWI4 · pith_short_8: ER2ZEM5V

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/ER2ZEM5VCFCHLWI4JGAFE36UYY \
  | 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: 24759233b5114475d91c4980526fd4c62c5fd53286ffeeda9bb3420b7c5acc39

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "12cb9f429a94b56573e74b8fabc5058ead000a6041f2081224c735086c30cfe5",
    "cross_cats_sorted": [
      "math.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2011-03-24T08:39:29Z",
    "title_canon_sha256": "48530759e03a1e2e382d9e9e7611f9c04896ad355a3c4c480f56d55328007f7b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.4700",
    "kind": "arxiv",
    "version": 6
  }
}