Pith Number

pith:QHMFMKHY

pith:2010:QHMFMKHYOFYFSUGF4C5ND3K6WW

not attested not anchored not stored refs pending

A numerical simulation of a "super-Earth" core delivery from ~ 100 AU to ~ 8 AU

Sergei Nayakshin, Seung-Hoon Cha

arxiv:1010.1489 v2 · 2010-10-07 · 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{QHMFMKHYOFYFSUGF4C5ND3K6WW}

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	2026-05-18T02:05:09.876847Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81d85628f871705950c5e0bad1ed5eb5b80fcfd0f40d38d82229c46bf2382b7e

Aliases

arxiv: 1010.1489 · arxiv_version: 1010.1489v2 · doi: 10.48550/arxiv.1010.1489 · pith_short_12: QHMFMKHYOFYF · pith_short_16: QHMFMKHYOFYFSUGF · pith_short_8: QHMFMKHY

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/QHMFMKHYOFYFSUGF4C5ND3K6WW \
  | 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: 81d85628f871705950c5e0bad1ed5eb5b80fcfd0f40d38d82229c46bf2382b7e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d8f6e435f2f447cb4b3de4e18bd594940db46349d1a13633b37cb303609743b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2010-10-07T17:19:02Z",
    "title_canon_sha256": "f87251cc05458bd69660524c6fcdbe972f14cf7003ad20d1c9b19d463da4d68f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.1489",
    "kind": "arxiv",
    "version": 2
  }
}