Pith Number

pith:42JYF7A2

pith:2009:42JYF7A2WGWG7XGDI5XJRD6KAB

not attested not anchored not stored refs pending

A Super-Earth caught in a trap

CASA*, Edyta Podlewska, Ewa Szuszkiewicz (Institute of Physics, Poland), University of Szczecin

arxiv:0905.2298 v1 · 2009-05-14 · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{42JYF7A2WGWG7XGDI5XJRD6KAB}

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	2026-05-18T02:13:39.434362Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e69382fc1ab1ac6fdcc3476e988fca00436b6a1bdde992c88e7bd81d8eb94c8c

Aliases

arxiv: 0905.2298 · arxiv_version: 0905.2298v1 · doi: 10.48550/arxiv.0905.2298 · pith_short_12: 42JYF7A2WGWG · pith_short_16: 42JYF7A2WGWG7XGD · pith_short_8: 42JYF7A2

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/42JYF7A2WGWG7XGDI5XJRD6KAB \
  | 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: e69382fc1ab1ac6fdcc3476e988fca00436b6a1bdde992c88e7bd81d8eb94c8c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d0e8774228be1adb1969b56a2933067e89128e8a9bbbab7ef0e39841f8576d1b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2009-05-14T17:29:15Z",
    "title_canon_sha256": "cb5b03c7486bc8f60989bbc96ec5d8bcef87baf336fe3cec324fd8a42cfb8b23"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.2298",
    "kind": "arxiv",
    "version": 1
  }
}