Pith Number

pith:7OCCEDDV

pith:2017:7OCCEDDVFL4C2PQWXU2F6KUYMN

not attested not anchored not stored refs pending

The longevity of water ice on Ganymedes and Europas around migrated giant planets

David C. Catling, Kevin J. Zahnle, Owen R. Lehmer

arxiv:1703.06936 v2 · 2017-03-20 · 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{7OCCEDDVFL4C2PQWXU2F6KUYMN}

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	2026-05-18T00:46:12.186747Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fb84220c752af82d3e16bd345f2a98634733a160ce08afb642de191d2323cbdb

Aliases

arxiv: 1703.06936 · arxiv_version: 1703.06936v2 · doi: 10.48550/arxiv.1703.06936 · pith_short_12: 7OCCEDDVFL4C · pith_short_16: 7OCCEDDVFL4C2PQW · pith_short_8: 7OCCEDDV

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/7OCCEDDVFL4C2PQWXU2F6KUYMN \
  | 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: fb84220c752af82d3e16bd345f2a98634733a160ce08afb642de191d2323cbdb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "be5bf48e598a1c21a2f11851b42e7eb0aa49127d7892a77f263ac0ec8d3e99c2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2017-03-20T19:27:34Z",
    "title_canon_sha256": "6f15c413e411ce518ae29def5900ee1ecca8969aaec3f1159c9d8ecddbb26eb3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.06936",
    "kind": "arxiv",
    "version": 2
  }
}