Pith Number

pith:SPMRGQNF

pith:2013:SPMRGQNF3ABLE7TOGOUON4GCQA

not attested not anchored not stored refs pending

Vertical settling and radial segregation of large dust grains in the circumstellar disk of the Butterfly Star

Anne Dutrey, Christian Gr\"afe, J\"urgen Sauter, Karl Stapelfeldt, Klaus Pontoppidan, Sebastian Wolf, Stephane Guilloteau

arxiv:1303.6499 v1 · 2013-03-26 · astro-ph.SR · 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{SPMRGQNF3ABLE7TOGOUON4GCQA}

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	2026-05-18T01:50:52.583119Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

93d91341a5d802b27e6e33a8e6f0c2803625ad465754218cfa61002ae7e670d6

Aliases

arxiv: 1303.6499 · arxiv_version: 1303.6499v1 · doi: 10.48550/arxiv.1303.6499 · pith_short_12: SPMRGQNF3ABL · pith_short_16: SPMRGQNF3ABLE7TO · pith_short_8: SPMRGQNF

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/SPMRGQNF3ABLE7TOGOUON4GCQA \
  | 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: 93d91341a5d802b27e6e33a8e6f0c2803625ad465754218cfa61002ae7e670d6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d4e4345f27963389f10f0c2228da31429eb4cb7331074d1573eaa1a9dd41155",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-03-26T14:11:34Z",
    "title_canon_sha256": "6e3be954a8b7bf8c6a1d501e7224cb82280e4e24acd6a51661f240f3ad27f7b0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.6499",
    "kind": "arxiv",
    "version": 1
  }
}