Pith Number

pith:WA23KSDO

pith:2015:WA23KSDOVBU6GL6XMBFWH77KXL

not attested not anchored not stored refs pending

The Motion of closed hypersurfaces in the central force fields

Weiping Yan

arxiv:1502.04786 v2 · 2015-02-17 · math.DG · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WA23KSDOVBU6GL6XMBFWH77KXL}

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	2026-05-18T01:12:18.546237Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b035b5486ea869e32fd7604b63ffeabade6c798bf38d4db09fbb19ae0ce1feab

Aliases

arxiv: 1502.04786 · arxiv_version: 1502.04786v2 · doi: 10.48550/arxiv.1502.04786 · pith_short_12: WA23KSDOVBU6 · pith_short_16: WA23KSDOVBU6GL6X · pith_short_8: WA23KSDO

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/WA23KSDOVBU6GL6XMBFWH77KXL \
  | 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: b035b5486ea869e32fd7604b63ffeabade6c798bf38d4db09fbb19ae0ce1feab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1a6bcec2cc638d0d8d909558ffafc4194dd93393892900931dc635160eecc7e3",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2015-02-17T03:03:10Z",
    "title_canon_sha256": "9cf307bb5fc668a5eea9114368162ac38f44335d8e9716bf3d3ef1d27c58543e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.04786",
    "kind": "arxiv",
    "version": 2
  }
}