Pith Number

pith:FE5DQWTJ

pith:2010:FE5DQWTJOQFIFMYYGAGWCH2HEZ

not attested not anchored not stored refs pending

Mass-radius relationships for exoplanets

Damian Swift, Damien Hicks, Eric Schwegler, Gilbert Collins, Graeme Ackland, Jon Eggert, Kyle Caspersen, Nadine Nettelmann, Sebastien Hamel

arxiv:1001.4851 v3 · 2010-01-27 · 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{FE5DQWTJOQFIFMYYGAGWCH2HEZ}

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	2026-05-18T04:06:21.124454Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

293a385a69740a82b318300d611f47266ec39450c88e5c7e4f59966a1c3cf556

Aliases

arxiv: 1001.4851 · arxiv_version: 1001.4851v3 · doi: 10.48550/arxiv.1001.4851 · pith_short_12: FE5DQWTJOQFI · pith_short_16: FE5DQWTJOQFIFMYY · pith_short_8: FE5DQWTJ

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/FE5DQWTJOQFIFMYYGAGWCH2HEZ \
  | 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: 293a385a69740a82b318300d611f47266ec39450c88e5c7e4f59966a1c3cf556

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "37aa6b70184f22f5dcf6f27d21cfeab204de38612e247212e10538c62ae75f24",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2010-01-27T04:40:05Z",
    "title_canon_sha256": "627ccecb92464765bb95a905c874004f2e52c01d45023771a000963ee9cb7cc7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1001.4851",
    "kind": "arxiv",
    "version": 3
  }
}