Pith Number

pith:OE4T3UAH

pith:2013:OE4T3UAHMDVU5VEXCM7NQRS3B5

not attested not anchored not stored refs pending

Non-Collision singularities in the Planar two-Center-two-Body problem

Dmitry Dolgopyat, Jinxin Xue

arxiv:1307.2645 v3 · 2013-07-10 · 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{OE4T3UAHMDVU5VEXCM7NQRS3B5}

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	2026-05-18T01:11:05.407784Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

71393dd00760eb4ed497133ed8465b0f495146dfb9afea9c2a64859f92033730

Aliases

arxiv: 1307.2645 · arxiv_version: 1307.2645v3 · doi: 10.48550/arxiv.1307.2645 · pith_short_12: OE4T3UAHMDVU · pith_short_16: OE4T3UAHMDVU5VEX · pith_short_8: OE4T3UAH

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/OE4T3UAHMDVU5VEXCM7NQRS3B5 \
  | 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: 71393dd00760eb4ed497133ed8465b0f495146dfb9afea9c2a64859f92033730

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7e4091eabbfb121a66da4252348ac12d9602b861a5e6a68ecd6fbaa5782334cb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2013-07-10T01:41:17Z",
    "title_canon_sha256": "5a0da9dd82cef1adce538c749f955e49279ef6ab0222c05ee876563927b880a9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.2645",
    "kind": "arxiv",
    "version": 3
  }
}