Pith Number

pith:IF2T4NPX

pith:2021:IF2T4NPXJLNGUSN3E2G6J6WUEK

not attested not anchored not stored refs pending

A comprehensive revisit of select Galileo/NIMS observations of Europa

Ishan Mishra, Jonathan Lunine, Kevin P. Hand, Nikole Lewis, Paul Helfenstein, R.W. Carlson, Ryan J. MacDonald

arxiv:2109.11650 v1 · 2021-09-23 · 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{IF2T4NPXJLNGUSN3E2G6J6WUEK}

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	2026-07-05T03:17:06.092155Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

41753e35f74ada6a49bb268de4fad422a9e2a619a0669da964140ca79142b72f

Aliases

arxiv: 2109.11650 · arxiv_version: 2109.11650v1 · doi: 10.48550/arxiv.2109.11650 · pith_short_12: IF2T4NPXJLNG · pith_short_16: IF2T4NPXJLNGUSN3 · pith_short_8: IF2T4NPX

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/IF2T4NPXJLNGUSN3E2G6J6WUEK \
  | 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: 41753e35f74ada6a49bb268de4fad422a9e2a619a0669da964140ca79142b72f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a2ba144e1db90169daa4c40d1aaaea6988d63a432daabe21cd57826c8f788813",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2021-09-23T21:16:44Z",
    "title_canon_sha256": "9f66f2c0d79e921835f093b74e2756cf33eb068724bd40fe714157865bcf2e66"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.11650",
    "kind": "arxiv",
    "version": 1
  }
}