Pith Number

pith:OD7NQH5Y

pith:2018:OD7NQH5YH2NS7MAH6L4JR5V7ML

not attested not anchored not stored refs pending

Threshold radii of volatile-rich planets

Caroline Dorn, Julia Venturini, Michael Lozovsky, Ravit Helled

arxiv:1808.09872 v1 · 2018-08-29 · 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{OD7NQH5YH2NS7MAH6L4JR5V7ML}

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	2026-05-18T00:03:01.783213Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

70fed81fb83e9b2fb007f2f898f6bf62f2cee8cc2e3c9cbfa11f799a56e45b0b

Aliases

arxiv: 1808.09872 · arxiv_version: 1808.09872v1 · doi: 10.48550/arxiv.1808.09872 · pith_short_12: OD7NQH5YH2NS · pith_short_16: OD7NQH5YH2NS7MAH · pith_short_8: OD7NQH5Y

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/OD7NQH5YH2NS7MAH6L4JR5V7ML \
  | 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: 70fed81fb83e9b2fb007f2f898f6bf62f2cee8cc2e3c9cbfa11f799a56e45b0b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "664d52cb9f60982da1799c6fa0b34a8c0b0bbe8eb26c8b2cb48698b2d8e285aa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2018-08-29T15:08:42Z",
    "title_canon_sha256": "aa9bf268fc288cfc13100990e3796684801cbcfd6b19f465a1dfe5cbc463b3a1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.09872",
    "kind": "arxiv",
    "version": 1
  }
}