Pith Number

pith:SA52QCIW

pith:2015:SA52QCIWRKVCVMVCEIWHOQXOT4

not attested not anchored not stored refs pending

Highly Siderophile Elements in the Earth's Mantle as a Clock for the Moon-forming Impact

Alessandro Morbidelli, David C. Rubie, David P. O'Brien, Kevin J. Walsh, Sean N. Raymond, Seth A. Jacobson

arxiv:1504.01421 v1 · 2015-04-06 · 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{SA52QCIWRKVCVMVCEIWHOQXOT4}

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	2026-05-18T02:19:27.262276Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

903ba809168aaa2ab2a2222c7742ee9f0d95c757a74f83ab508d4f23fcc5f22e

Aliases

arxiv: 1504.01421 · arxiv_version: 1504.01421v1 · doi: 10.48550/arxiv.1504.01421 · pith_short_12: SA52QCIWRKVC · pith_short_16: SA52QCIWRKVCVMVC · pith_short_8: SA52QCIW

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/SA52QCIWRKVCVMVCEIWHOQXOT4 \
  | 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: 903ba809168aaa2ab2a2222c7742ee9f0d95c757a74f83ab508d4f23fcc5f22e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a228fb0dce1ebfa38c89f0646634582d92e9c5aa677f9fb094e564994b3a36a1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2015-04-06T21:30:50Z",
    "title_canon_sha256": "d4ca3e92a30475a7ee32489e0cfb8f8ca0fb33f90cda2d4407dac561d4136e59"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.01421",
    "kind": "arxiv",
    "version": 1
  }
}