Pith Number

pith:I6DPF6I2

pith:2018:I6DPF6I2RX7XSVQECPL324PRWO

not attested not anchored not stored refs pending

Super-Earths in need for Extremly Big Rockets

Michael Hippke

arxiv:1803.11384 v2 · 2018-03-30 · physics.pop-ph · 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{I6DPF6I2RX7XSVQECPL324PRWO}

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	2026-05-18T00:19:16.202608Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4786f2f91a8dff79560413d7bd71f1b3a56734b3a715bfc678b24cb5986ea627

Aliases

arxiv: 1803.11384 · arxiv_version: 1803.11384v2 · doi: 10.48550/arxiv.1803.11384 · pith_short_12: I6DPF6I2RX7X · pith_short_16: I6DPF6I2RX7XSVQE · pith_short_8: I6DPF6I2

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/I6DPF6I2RX7XSVQECPL324PRWO \
  | 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: 4786f2f91a8dff79560413d7bd71f1b3a56734b3a715bfc678b24cb5986ea627

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f2d637f6a1bb909cd038269b77a15579547acd06cbfa2df013dfc4a92691a74e",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.pop-ph",
    "submitted_at": "2018-03-30T08:27:29Z",
    "title_canon_sha256": "4537ec3f22cbde485ccbfcc5f050306ed075cc0ac6d626f3ac027d21374ce85e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.11384",
    "kind": "arxiv",
    "version": 2
  }
}