Pith Number

pith:K4CPBY22

pith:2013:K4CPBY226YJANGZH6UJR7WBZ2Y

not attested not anchored not stored refs pending

The role of material strength in collisions -- Comparing solid body and hydrodynamic physics for simulating collisions of planetesimals with icy shells

Christoph Sch\"afer, Roland Speith, Rudolf Dvorak, Thomas I. Maindl

arxiv:1401.0045 v2 · 2013-12-30 · 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{K4CPBY226YJANGZH6UJR7WBZ2Y}

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	2026-05-18T02:46:14.818132Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5704f0e35af612069b27f5131fd839d62f4a0b6b60c39cd9eb64bbfba4f53543

Aliases

arxiv: 1401.0045 · arxiv_version: 1401.0045v2 · doi: 10.48550/arxiv.1401.0045 · pith_short_12: K4CPBY226YJA · pith_short_16: K4CPBY226YJANGZH · pith_short_8: K4CPBY22

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/K4CPBY226YJANGZH6UJR7WBZ2Y \
  | 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: 5704f0e35af612069b27f5131fd839d62f4a0b6b60c39cd9eb64bbfba4f53543

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "91706036af2b8eaaa36929dbbdd5450719721c9991a610d7cec350b1f313b785",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2013-12-30T22:45:19Z",
    "title_canon_sha256": "b7b35fd69df89ff6dc1a716556f4fc5ef4bd8ac4a894378dcea2647d128940ea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.0045",
    "kind": "arxiv",
    "version": 2
  }
}