Pith Number

pith:RAGCHNUZ

pith:2017:RAGCHNUZMVCLBUML4HKJTVQ3K6

not attested not anchored not stored refs pending

The cosmic shoreline: the evidence that escape determines which planets have atmospheres, and what this may mean for Proxima Centauri b

David C. Catling, Kevin J. Zahnle

arxiv:1702.03386 v2 · 2017-02-11 · 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{RAGCHNUZMVCLBUML4HKJTVQ3K6}

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	2026-05-18T00:40:19.282984Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

880c23b6996544b0d18be1d499d61b579477a4c3635f14dd05c1108ca226a9fb

Aliases

arxiv: 1702.03386 · arxiv_version: 1702.03386v2 · doi: 10.48550/arxiv.1702.03386 · pith_short_12: RAGCHNUZMVCL · pith_short_16: RAGCHNUZMVCLBUML · pith_short_8: RAGCHNUZ

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/RAGCHNUZMVCLBUML4HKJTVQ3K6 \
  | 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: 880c23b6996544b0d18be1d499d61b579477a4c3635f14dd05c1108ca226a9fb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f4ff167c76868d4f7db22d11f3a43c7c2e9289873e1ba3b02961fd4088813196",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2017-02-11T06:15:54Z",
    "title_canon_sha256": "eabbfc2afd762bc977a86dab85906ac1ea29854adac1e91e8f13f4ba36840b78"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.03386",
    "kind": "arxiv",
    "version": 2
  }
}