Pith Number

pith:V2WYJVPE

pith:2010:V2WYJVPE5CPAYAXDCAOBKJJUG6

not attested not anchored not stored refs pending

The Age of the HD 15407 System and the Epoch of Final Catastrophic Mass Accretion onto Terrestrial Planets around Sun-like Stars

(2) UCLA, (3) University of Georgia), B. Zuckerman(2), C. Melis(1), Inseok Song(3) ((1) UC San Diego, Joseph H. Rhee(2)

arxiv:1005.2451 v2 · 2010-05-14 · astro-ph.SR · 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{V2WYJVPE5CPAYAXDCAOBKJJUG6}

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	2026-05-18T02:07:32.976298Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aead84d5e4e89e0c02e3101c15253437b7f77e0366dcbbfb46b35562f554e90e

Aliases

arxiv: 1005.2451 · arxiv_version: 1005.2451v2 · doi: 10.48550/arxiv.1005.2451 · pith_short_12: V2WYJVPE5CPA · pith_short_16: V2WYJVPE5CPAYAXD · pith_short_8: V2WYJVPE

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/V2WYJVPE5CPAYAXDCAOBKJJUG6 \
  | 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: aead84d5e4e89e0c02e3101c15253437b7f77e0366dcbbfb46b35562f554e90e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "03bcd88cba1dc96085f8c6fd95dd740764ccbde81d61efcab70714e6934f000b",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-05-14T03:49:13Z",
    "title_canon_sha256": "bdf39d81e695e012ad13cd76acebb589b9c8593ab854f3cfa1906cd8cb2d29a9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1005.2451",
    "kind": "arxiv",
    "version": 2
  }
}