Pith Number

pith:QY5KDFMZ

pith:2017:QY5KDFMZ4JNXP3WNZFPBU2JTLW

not attested not anchored not stored refs pending

Rocky Worlds Limited to ~1.8 Earth Radii by Atmospheric Escape During a Star's Extreme UV Saturation

David Catling, Owen Lehmer

arxiv:1706.02050 v3 · 2017-06-07 · 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{QY5KDFMZ4JNXP3WNZFPBU2JTLW}

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	2026-05-18T00:36:31.318090Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

863aa19599e25b77eecdc95e1a69335d949cc62bf6f15c851109710c52888187

Aliases

arxiv: 1706.02050 · arxiv_version: 1706.02050v3 · doi: 10.48550/arxiv.1706.02050 · pith_short_12: QY5KDFMZ4JNX · pith_short_16: QY5KDFMZ4JNXP3WN · pith_short_8: QY5KDFMZ

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/QY5KDFMZ4JNXP3WNZFPBU2JTLW \
  | 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: 863aa19599e25b77eecdc95e1a69335d949cc62bf6f15c851109710c52888187

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9e411c9d1f63a58ec241485a502a573b9c2cd5ce6453914c28bb21438bf313a6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2017-06-07T05:34:12Z",
    "title_canon_sha256": "66ea8ad271acaf7738ffbf2d9602a889ddce9911bdba32395188da661878405f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.02050",
    "kind": "arxiv",
    "version": 3
  }
}