Pith Number

pith:LL4DEKPR

pith:2011:LL4DEKPR2LBWKOIOGKKVP3JYE7

not attested not anchored not stored refs pending

Gap opening beyond dead zones by photoevaporation

Ryuji Morishima

arxiv:1110.2250 v1 · 2011-10-11 · 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{LL4DEKPR2LBWKOIOGKKVP3JYE7}

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	2026-05-18T02:00:13.939629Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5af83229f1d2c365390e329557ed3827c0f2dbaf4bbdd7983052fab5f5110deb

Aliases

arxiv: 1110.2250 · arxiv_version: 1110.2250v1 · doi: 10.48550/arxiv.1110.2250 · pith_short_12: LL4DEKPR2LBW · pith_short_16: LL4DEKPR2LBWKOIO · pith_short_8: LL4DEKPR

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/LL4DEKPR2LBWKOIOGKKVP3JYE7 \
  | 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: 5af83229f1d2c365390e329557ed3827c0f2dbaf4bbdd7983052fab5f5110deb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b2815d502a60e14dbfa837b2a5b3a22bdd6a5c66f6d9ef1cd799d98070b17587",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2011-10-11T02:22:37Z",
    "title_canon_sha256": "57683f9a8ed89fc0cb5226772a5bb634ab2d133ad0bb6437b818b9236aa61c61"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.2250",
    "kind": "arxiv",
    "version": 1
  }
}