Pith Number

pith:QXS44ZQZ

pith:2009:QXS44ZQZSDSCWCFSJPUE4LLOXA

not attested not anchored not stored refs pending

Dust Distribution in the beta Pictoris Circumstellar Disks

Bryce Croll (University of Toronto), Mirza Ahmic, Pawel Artymowicz (University of Toronto at Scarborough)

arxiv:0909.0730 v1 · 2009-09-03 · 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{QXS44ZQZSDSCWCFSJPUE4LLOXA}

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	2026-05-18T02:34:36.549911Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

85e5ce661990e42b08b24be84e2d6eb82b059036d61de151cfac309f7c28056c

Aliases

arxiv: 0909.0730 · arxiv_version: 0909.0730v1 · doi: 10.48550/arxiv.0909.0730 · pith_short_12: QXS44ZQZSDSC · pith_short_16: QXS44ZQZSDSCWCFS · pith_short_8: QXS44ZQZ

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/QXS44ZQZSDSCWCFSJPUE4LLOXA \
  | 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: 85e5ce661990e42b08b24be84e2d6eb82b059036d61de151cfac309f7c28056c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1753cd53abb311d5f0cde1502f7298484774475e32cc11443f5e12b4c55b58ab",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-09-03T19:09:21Z",
    "title_canon_sha256": "5e90bd121fa53f0a77a76214be793cf0f0dc92b1b2378557f45ec5415813920a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.0730",
    "kind": "arxiv",
    "version": 1
  }
}