Pith Number

pith:CAHGA3KD

pith:2010:CAHGA3KDDELKBB6F4QDQYFZHAB

not attested not anchored not stored refs pending

Least-action perihelion precession

Arto Annila, Mikael Koskela

arxiv:1009.1571 v1 · 2010-09-08 · physics.gen-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{CAHGA3KDDELKBB6F4QDQYFZHAB}

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	2026-05-18T04:10:34.545945Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

100e606d431916a087c5e4070c17270064f9a2f9821bf896b4b5255d52b37eb6

Aliases

arxiv: 1009.1571 · arxiv_version: 1009.1571v1 · doi: 10.48550/arxiv.1009.1571 · pith_short_12: CAHGA3KDDELK · pith_short_16: CAHGA3KDDELKBB6F · pith_short_8: CAHGA3KD

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/CAHGA3KDDELKBB6F4QDQYFZHAB \
  | 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: 100e606d431916a087c5e4070c17270064f9a2f9821bf896b4b5255d52b37eb6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "abdfd2d31d24689b122fc9f5e6f22d907efd0d381c3fbd42ada2a602dfa401fc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.gen-ph",
    "submitted_at": "2010-09-08T15:52:04Z",
    "title_canon_sha256": "d14501fe12a98866c9bdccf2a17dafa3d0ecb353d666decd941e09a39999ce72"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.1571",
    "kind": "arxiv",
    "version": 1
  }
}