Pith Number

pith:GNUDA3WA

pith:2018:GNUDA3WAY3FCW32B6YKQB3BAUM

not attested not anchored not stored refs pending

Gravitational instability of a dust layer composed of porous silicate dust aggregates in a protoplanetary disk

Eiichiro Kokubo, Misako Tatsuuma, Shugo Michikoshi

arxiv:1802.03121 v1 · 2018-02-09 · 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{GNUDA3WAY3FCW32B6YKQB3BAUM}

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	2026-05-18T00:20:35.169608Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3368306ec0c6ca2b6f41f61500ec20a3143db8e32076fde4d9a8fbf5e171a1ef

Aliases

arxiv: 1802.03121 · arxiv_version: 1802.03121v1 · doi: 10.48550/arxiv.1802.03121 · pith_short_12: GNUDA3WAY3FC · pith_short_16: GNUDA3WAY3FCW32B · pith_short_8: GNUDA3WA

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/GNUDA3WAY3FCW32B6YKQB3BAUM \
  | 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: 3368306ec0c6ca2b6f41f61500ec20a3143db8e32076fde4d9a8fbf5e171a1ef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c3ff94eac49303a5badb1a064d00b1a95269b4a89c6640ebb786e3cb2ab98809",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2018-02-09T04:17:38Z",
    "title_canon_sha256": "a4667e8d9bde143d2fb3abada491fe5604acc11c4c488692795db621478ce5bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.03121",
    "kind": "arxiv",
    "version": 1
  }
}