Pith Number

pith:SNO3VVQL

pith:2009:SNO3VVQLAIKMG6X564WMHYTCPE

not attested not anchored not stored refs pending

Discovery of an old photoevaporating disk in sigma Orionis

A. Natta, E. Rigliaco, G. Sacco, S. Randich

arxiv:0902.0457 v1 · 2009-02-03 · 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{SNO3VVQLAIKMG6X564WMHYTCPE}

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.

Cited by

1 paper in Pith

The Accretion Process on Protostars

Receipt and verification

First computed	2026-05-18T02:14:54.515280Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

935dbad60b0214c37afdf72cc3e262790273fa1e48738d8d51e5db40fc366375

Aliases

arxiv: 0902.0457 · arxiv_version: 0902.0457v1 · doi: 10.48550/arxiv.0902.0457 · pith_short_12: SNO3VVQLAIKM · pith_short_16: SNO3VVQLAIKMG6X5 · pith_short_8: SNO3VVQL

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/SNO3VVQLAIKMG6X564WMHYTCPE \
  | 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: 935dbad60b0214c37afdf72cc3e262790273fa1e48738d8d51e5db40fc366375

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2ad170f912f026fbc413d7b99e765cdfe300b470379fba13b04d544ca414873f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-02-03T09:53:54Z",
    "title_canon_sha256": "95808d9e67b7d2f7d0e84e9b0a4a86be1c36acae2f30d1d1514ddbac6614501a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.0457",
    "kind": "arxiv",
    "version": 1
  }
}