Pith Number

pith:2JPS66VX

pith:2019:2JPS66VXF6QUWI6KIH5KTQ6X4E

not attested not anchored not stored refs pending

On the existence of regular tetrahedral non-homothetic homographic solution

Jaewoo Kim

arxiv:1908.09129 v1 · 2019-08-24 · physics.class-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2JPS66VXF6QUWI6KIH5KTQ6X4E}

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	2026-07-04T23:59:36.954254Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d25f2f7ab72fa14b23ca41faa9c3d7e1053291bd6e9d04bab2349cb95c4b2001

Aliases

arxiv: 1908.09129 · arxiv_version: 1908.09129v1 · doi: 10.48550/arxiv.1908.09129 · pith_short_12: 2JPS66VXF6QU · pith_short_16: 2JPS66VXF6QUWI6K · pith_short_8: 2JPS66VX

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/2JPS66VXF6QUWI6KIH5KTQ6X4E \
  | 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: d25f2f7ab72fa14b23ca41faa9c3d7e1053291bd6e9d04bab2349cb95c4b2001

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "83ea18cb45c1e780d75393ce3cee507f20918015416c912de82533df614938d6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2019-08-24T11:51:58Z",
    "title_canon_sha256": "e402db79064a51c6b5c9287456014624ced8e1f9dcbec34fcaa3dec74e9f2ff0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.09129",
    "kind": "arxiv",
    "version": 1
  }
}