Pith Number

pith:PPGNKYIA

pith:2013:PPGNKYIAEUQ3X6MQXWGDRR5ST7

not attested not anchored not stored refs pending

Bulk Composition of GJ 1214b and other sub-Neptune exoplanets

Diana Valencia, Richard S. Freedman, Tristan Guillot, Vivien Parmentier

arxiv:1305.2629 v2 · 2013-05-12 · 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{PPGNKYIAEUQ3X6MQXWGDRR5ST7}

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	2026-05-18T01:50:03.119881Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7bccd561002521bbf990bd8c38c7b29ff49a0f553450f51dd3352693d04229b7

Aliases

arxiv: 1305.2629 · arxiv_version: 1305.2629v2 · doi: 10.48550/arxiv.1305.2629 · pith_short_12: PPGNKYIAEUQ3 · pith_short_16: PPGNKYIAEUQ3X6MQ · pith_short_8: PPGNKYIA

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/PPGNKYIAEUQ3X6MQXWGDRR5ST7 \
  | 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: 7bccd561002521bbf990bd8c38c7b29ff49a0f553450f51dd3352693d04229b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0a8dfbdaaded634ab0055534d17fb98c511383d893f9c4227a1c1f15cd45ca20",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2013-05-12T20:10:32Z",
    "title_canon_sha256": "083d68b0145a675f9d69eb275eda3dc29277140d215cc32f0213a9b6131f8909"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.2629",
    "kind": "arxiv",
    "version": 2
  }
}