Pith Number

pith:5IGQ4UFS

pith:2009:5IGQ4UFS44FLW6YYEHBWUOIU3Z

not attested not anchored not stored refs pending

Two bodies gravitational system with variable mass and damping-antidamping effect due to star wind

E.M. Juarez, G.V. Lopez

arxiv:0910.4684 v2 · 2009-10-24 · physics.class-ph · physics.space-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{5IGQ4UFS44FLW6YYEHBWUOIU3Z}

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	2026-05-18T04:21:50.804239Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ea0d0e50b2e70abb7b1821c36a3914de5981b617891d9beb7fe0aaac20b6889c

Aliases

arxiv: 0910.4684 · arxiv_version: 0910.4684v2 · doi: 10.48550/arxiv.0910.4684 · pith_short_12: 5IGQ4UFS44FL · pith_short_16: 5IGQ4UFS44FLW6YY · pith_short_8: 5IGQ4UFS

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/5IGQ4UFS44FLW6YYEHBWUOIU3Z \
  | 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: ea0d0e50b2e70abb7b1821c36a3914de5981b617891d9beb7fe0aaac20b6889c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5055af7a78443b26f9b7d09f633359c3670f5754bad09484ba3315443dc73035",
    "cross_cats_sorted": [
      "physics.space-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2009-10-24T22:51:48Z",
    "title_canon_sha256": "7bf4e68459d0680e4b208bae3f096d668f113aa64a13049fc14605fd94955844"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.4684",
    "kind": "arxiv",
    "version": 2
  }
}