Pith Number

pith:SAQYG7WY

pith:2019:SAQYG7WYBYWFO6WTYPNNFXUM7U

not attested not anchored not stored refs pending

A special giant impact model: implications on core-mantle chemical differentiation

Cao Xiaobin, Christian Reinhardt, Hongping Deng, You Zhou, Yun Liu

arxiv:1901.00420 v3 · 2019-01-02 · 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{SAQYG7WYBYWFO6WTYPNNFXUM7U}

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	2026-05-17T23:56:52.397793Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9021837ed80e2c577ad3c3dad2de8cfd071386a91b5e65405cb96f393cdb6ffb

Aliases

arxiv: 1901.00420 · arxiv_version: 1901.00420v3 · doi: 10.48550/arxiv.1901.00420 · pith_short_12: SAQYG7WYBYWF · pith_short_16: SAQYG7WYBYWFO6WT · pith_short_8: SAQYG7WY

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/SAQYG7WYBYWFO6WTYPNNFXUM7U \
  | 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: 9021837ed80e2c577ad3c3dad2de8cfd071386a91b5e65405cb96f393cdb6ffb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d6530e27ff5664d52006514fc09a2719140022e8ff04c315bfbf114cc27c61f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2019-01-02T15:39:25Z",
    "title_canon_sha256": "6e3cb94579916a3229a23d26ba3b3574564feabf12628e8cfbb463b5481c22e5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.00420",
    "kind": "arxiv",
    "version": 3
  }
}