Pith Number

pith:ZKHEPPCH

pith:2017:ZKHEPPCHHKU4RYUQPBYHRSO6OK

not attested not anchored not stored refs pending

Impact crater morphology and the structure of Europa's ice shell

Brandon C. Johnson, Elizabeth A. Silber

arxiv:1711.08997 v1 · 2017-11-24 · 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{ZKHEPPCHHKU4RYUQPBYHRSO6OK}

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	2026-05-18T00:29:41.522765Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ca8e47bc473aa9c8e290787078c9de7283319863851cb248c120777e807425f0

Aliases

arxiv: 1711.08997 · arxiv_version: 1711.08997v1 · doi: 10.48550/arxiv.1711.08997 · pith_short_12: ZKHEPPCHHKU4 · pith_short_16: ZKHEPPCHHKU4RYUQ · pith_short_8: ZKHEPPCH

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/ZKHEPPCHHKU4RYUQPBYHRSO6OK \
  | 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: ca8e47bc473aa9c8e290787078c9de7283319863851cb248c120777e807425f0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "020b6edc6f7a5ac6f9ebbe62d5f31f560db9eee012d84c779142041df56cce54",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2017-11-24T14:51:03Z",
    "title_canon_sha256": "2c9ce27aa8d058d418b72fbe4c2b3f2e2aba95089ec8ca56e45419695a0207ba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.08997",
    "kind": "arxiv",
    "version": 1
  }
}