Pith Number

pith:OQJFSPUI

pith:2019:OQJFSPUIO6HT47A4YL6MO6P3FG

not attested not anchored not stored refs pending

Constraining the Formation of the Four Terrestrial Planets in the Solar System

Patryk Sofia Lykawka, Takashi Ito

arxiv:1908.04934 v2 · 2019-08-14 · 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{OQJFSPUIO6HT47A4YL6MO6P3FG}

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	2026-07-05T00:10:41.830273Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7412593e88778f3e7c1cc2fcc779fb2983c1030f03efa50ef2cf342f12456ce9

Aliases

arxiv: 1908.04934 · arxiv_version: 1908.04934v2 · doi: 10.48550/arxiv.1908.04934 · pith_short_12: OQJFSPUIO6HT · pith_short_16: OQJFSPUIO6HT47A4 · pith_short_8: OQJFSPUI

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/OQJFSPUIO6HT47A4YL6MO6P3FG \
  | 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: 7412593e88778f3e7c1cc2fcc779fb2983c1030f03efa50ef2cf342f12456ce9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c700396755328e2d9049f80b18fc6c9886e83d65b864937017b8f3ebd9fea2a5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2019-08-14T03:01:28Z",
    "title_canon_sha256": "7deacfe4492c6f35b56ca786a4f6bfec0d83553373bdac320e46dc97cdd59e23"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.04934",
    "kind": "arxiv",
    "version": 2
  }
}