Pith Number

pith:3GYHY5NA

pith:2013:3GYHY5NAS7E476I4DI3F6CVZKX

not attested not anchored not stored refs pending

The evolution of planetesimal swarms in self-gravitating protoplanetary discs

Cathie Clarke, Joe Walmswell, Peter Cossins

arxiv:1302.7216 v1 · 2013-02-28 · 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{3GYHY5NAS7E476I4DI3F6CVZKX}

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	2026-05-18T01:51:26.014336Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d9b07c75a097c9cff91c1a365f0ab955f6a3091c2506ab73158664015adc651e

Aliases

arxiv: 1302.7216 · arxiv_version: 1302.7216v1 · doi: 10.48550/arxiv.1302.7216 · pith_short_12: 3GYHY5NAS7E4 · pith_short_16: 3GYHY5NAS7E476I4 · pith_short_8: 3GYHY5NA

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/3GYHY5NAS7E476I4DI3F6CVZKX \
  | 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: d9b07c75a097c9cff91c1a365f0ab955f6a3091c2506ab73158664015adc651e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c1149062704e026332d2698659ad704aab38f390677052de434faec63b2d176",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2013-02-28T14:57:02Z",
    "title_canon_sha256": "538b1b24fd6a7a9848bc0c8ff559fde11d3b04d1da3a272f869e5d989f205c12"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.7216",
    "kind": "arxiv",
    "version": 1
  }
}