Pith Number

pith:VKUPPP4Y

pith:2014:VKUPPP4YGQDPPEZBEYDULCIZ3Q

not attested not anchored not stored refs pending

A dynamical study on the habitability of terrestrial exoplanets II: The super Earth HD 40307 g

E. Kokubo, R. Brasser, S. Ida

arxiv:1403.5868 v1 · 2014-03-24 · 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{VKUPPP4YGQDPPEZBEYDULCIZ3Q}

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	2026-05-18T01:43:52.013333Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aaa8f7bf983406f793212607458919dc2d00100a51f57bc7f346516d568584c8

Aliases

arxiv: 1403.5868 · arxiv_version: 1403.5868v1 · doi: 10.48550/arxiv.1403.5868 · pith_short_12: VKUPPP4YGQDP · pith_short_16: VKUPPP4YGQDPPEZB · pith_short_8: VKUPPP4Y

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/VKUPPP4YGQDPPEZBEYDULCIZ3Q \
  | 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: aaa8f7bf983406f793212607458919dc2d00100a51f57bc7f346516d568584c8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4c437832e353191d7a4c75d0cbe3a7d9b25805a9df9352c481ba80eea6a9164d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2014-03-24T07:04:32Z",
    "title_canon_sha256": "7fce7396c488cf8e4b2c1d0d2c594a7562f3d1963e2523b8fc0d2c977ee15a1d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.5868",
    "kind": "arxiv",
    "version": 1
  }
}