Pith Number

pith:XU4FUTKN

pith:2025:XU4FUTKN36H3MX22RX3BD25J5U

not attested not anchored not stored refs pending

New constraint on Europa's ice shell: magnetic signature from the ocean

Christophe Gissinger, Florentin Daniel, Ludovic Petitdemange

arxiv:2509.10903 v1 · 2025-09-13 · 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{XU4FUTKN36H3MX22RX3BD25J5U}

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	2026-07-05T12:11:30.165904Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bd385a4d4ddf8fb65f5a8df611eba9ed3b0c34fd52776c7b5905a2787d9869ab

Aliases

arxiv: 2509.10903 · arxiv_version: 2509.10903v1 · doi: 10.48550/arxiv.2509.10903 · pith_short_12: XU4FUTKN36H3 · pith_short_16: XU4FUTKN36H3MX22 · pith_short_8: XU4FUTKN

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/XU4FUTKN36H3MX22RX3BD25J5U \
  | 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: bd385a4d4ddf8fb65f5a8df611eba9ed3b0c34fd52776c7b5905a2787d9869ab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "84093f942273523d06d283e2b04523ace72874b0492ba994f6b74bff133bca2e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2025-09-13T17:05:14Z",
    "title_canon_sha256": "3cc7066eafbd8de2990289b4585d658446b70b1050455a5a0734143ce0930dff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2509.10903",
    "kind": "arxiv",
    "version": 1
  }
}