Pith Number

pith:Y6B3GTDV

pith:2012:Y6B3GTDVMWE6E4WSUIYTZTNOHF

not attested not anchored not stored refs pending

Absence of positive eigenvalues for hard-core N-body systems

E. Skibsted, K. Ito

arxiv:1207.7190 v1 · 2012-07-31 · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Y6B3GTDVMWE6E4WSUIYTZTNOHF}

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	2026-05-18T03:49:46.534337Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c783b34c756589e272d2a2313ccdae395d7072ad5579ac799b378611749ba74f

Aliases

arxiv: 1207.7190 · arxiv_version: 1207.7190v1 · doi: 10.48550/arxiv.1207.7190 · pith_short_12: Y6B3GTDVMWE6 · pith_short_16: Y6B3GTDVMWE6E4WS · pith_short_8: Y6B3GTDV

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/Y6B3GTDVMWE6E4WSUIYTZTNOHF \
  | 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: c783b34c756589e272d2a2313ccdae395d7072ad5579ac799b378611749ba74f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "16990c94d5fa59503c7548746cc602d63fac4c5131c45f13b98f8b472fdfac77",
    "cross_cats_sorted": [
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2012-07-31T08:57:53Z",
    "title_canon_sha256": "8e96950c6a1a900a20865358c4ca5800e8269143fa7800c4a56391e0c550d2cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.7190",
    "kind": "arxiv",
    "version": 1
  }
}