Pith Number

pith:SOVGAPSJ

pith:2010:SOVGAPSJUDMOQEWFYE4HFASK4J

not attested not anchored not stored refs pending

A disk inside the bipolar planetary nebula M2-9

Albert A. Zijlstra, Arancha Castro-Carrizo, Bruce Balick, Eric Lagadec, Foteini Lykou, Nathan Smith, Olivier Chesneau

arxiv:1011.5671 v1 · 2010-11-25 · 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{SOVGAPSJUDMOQEWFYE4HFASK4J}

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	2026-05-18T02:04:38.885892Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

93aa603e49a0d8e812c5c13872824ae24c170cb07c9e2a9e11612fdb7cd09100

Aliases

arxiv: 1011.5671 · arxiv_version: 1011.5671v1 · doi: 10.48550/arxiv.1011.5671 · pith_short_12: SOVGAPSJUDMO · pith_short_16: SOVGAPSJUDMOQEWF · pith_short_8: SOVGAPSJ

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/SOVGAPSJUDMOQEWFYE4HFASK4J \
  | 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: 93aa603e49a0d8e812c5c13872824ae24c170cb07c9e2a9e11612fdb7cd09100

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "be746050302cb2bdd233f65dbb6ae41926c597b0363de52a1ba408e0188c0a08",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-11-25T19:02:56Z",
    "title_canon_sha256": "923a4c404c8abb123b09b4552d4b5e787f9228c833aa43ce4ec26d721bd738fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1011.5671",
    "kind": "arxiv",
    "version": 1
  }
}