Pith Number

pith:4FUH7CGM

pith:2018:4FUH7CGMWDCKAMMGXWFE2S766J

not attested not anchored not stored refs pending

The Gregory-Newton Problem for Kissing Sticky Spheres

Lukas Trombach, Peter Schwerdtfeger

arxiv:1808.02982 v1 · 2018-08-09 · physics.atm-clus · cond-mat.soft

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4FUH7CGMWDCKAMMGXWFE2S766J}

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	2026-05-18T00:03:45.755976Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1687f88ccb0c4a03186bd8a4d4bfef2536fe638688fc00fecb735de51b9339f

Aliases

arxiv: 1808.02982 · arxiv_version: 1808.02982v1 · doi: 10.48550/arxiv.1808.02982 · pith_short_12: 4FUH7CGMWDCK · pith_short_16: 4FUH7CGMWDCKAMMG · pith_short_8: 4FUH7CGM

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/4FUH7CGMWDCKAMMGXWFE2S766J \
  | 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: e1687f88ccb0c4a03186bd8a4d4bfef2536fe638688fc00fecb735de51b9339f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1ee9e73d60126d062cfe47ae70eaab9938380b58c5026995ecfa49054a30bcca",
    "cross_cats_sorted": [
      "cond-mat.soft"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atm-clus",
    "submitted_at": "2018-08-09T00:58:26Z",
    "title_canon_sha256": "718cbeca37b9827e15e3cc220fd9e29461994294ee836f1d61a9fa30d762eaa1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.02982",
    "kind": "arxiv",
    "version": 1
  }
}