Pith Number

pith:USXFJUPE

pith:2012:USXFJUPEPKUXX3YY6GK4ZGAHPH

not attested not anchored not stored refs pending

On the survival of brown dwarfs and planets engulfed by their giant host star

2), (2) University of Victoria, (3) Macquarie University), Jean-Claude Passy (1, Mordecai-Mark Mac Low (1), Orsola De Marco (3) ((1) American Museum of Natural History

arxiv:1210.0879 v1 · 2012-10-02 · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{USXFJUPEPKUXX3YY6GK4ZGAHPH}

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	2026-05-18T01:54:11.422910Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a4ae54d1e47aa97bef18f195cc980779fe5f93214e084274cade5f9fc8f7311b

Aliases

arxiv: 1210.0879 · arxiv_version: 1210.0879v1 · doi: 10.48550/arxiv.1210.0879 · pith_short_12: USXFJUPEPKUX · pith_short_16: USXFJUPEPKUXX3YY · pith_short_8: USXFJUPE

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/USXFJUPEPKUXX3YY6GK4ZGAHPH \
  | 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: a4ae54d1e47aa97bef18f195cc980779fe5f93214e084274cade5f9fc8f7311b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "93452e3911e42c654d6549d78137d479f3a4d36b545c78ccd091c3e0349d4f60",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-10-02T19:02:48Z",
    "title_canon_sha256": "dfb32f0ba8be257f7f4783e90daf41729eb0a4a5a413e4b4f7035e523da9497b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.0879",
    "kind": "arxiv",
    "version": 1
  }
}