Pith Number

pith:PPF45FK2

pith:2010:PPF45FK2XUIHC3P22EMGRYQBF3

not attested not anchored not stored refs pending

Electrostatic Barrier against Dust Growth in Protoplanetary Disks. II. Measuring the Size of the "Frozen" Zone

Hidekazu Tanaka, Masa-aki Sakagami, Satoshi Okuzumi, Taku Takeuchi

arxiv:1009.3101 v2 · 2010-09-16 · astro-ph.EP · 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{PPF45FK2XUIHC3P22EMGRYQBF3}

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	2026-05-18T02:05:27.622279Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7bcbce955abd10716dfad11868e2012ed09fc064d8d7e9f5075e5f29bb43896d

Aliases

arxiv: 1009.3101 · arxiv_version: 1009.3101v2 · doi: 10.48550/arxiv.1009.3101 · pith_short_12: PPF45FK2XUIH · pith_short_16: PPF45FK2XUIHC3P2 · pith_short_8: PPF45FK2

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/PPF45FK2XUIHC3P22EMGRYQBF3 \
  | 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: 7bcbce955abd10716dfad11868e2012ed09fc064d8d7e9f5075e5f29bb43896d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "90eba1cd5fd161e97c9e407079a3900a7a1b4d5ddace72c94c42c9a631a7731f",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2010-09-16T06:51:14Z",
    "title_canon_sha256": "501aadfdad51c39016d37e9c4b45f7eafb8975fd318227234ba4a3fbde494910"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.3101",
    "kind": "arxiv",
    "version": 2
  }
}