Pith Number

pith:ZDKVSUDI

pith:2009:ZDKVSUDIA4IWZ2LJZU73VMP54L

not attested not anchored not stored refs pending

Hot spots and a clumpy disk: Variability of brown dwarfs and stars in the young Sigma Ori cluster

Alexander Scholz (SUPA, Ciara Quinn (St. Andrews), Jochen Eisloeffel (TLS Tautenburg), Kenneth Wood (St. Andrews), Ray Jayawardhana (University of Toronto), University of St. Andrews), Xiaoying Xu (University of Arizona)

arxiv:0907.0476 v2 · 2009-07-02 · 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{ZDKVSUDIA4IWZ2LJZU73VMP54L}

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	2026-05-18T02:13:11.080974Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c8d559506807116ce969cd3fbab1fde2f595753a9b9c259f82731fd2e841bcbd

Aliases

arxiv: 0907.0476 · arxiv_version: 0907.0476v2 · doi: 10.48550/arxiv.0907.0476 · pith_short_12: ZDKVSUDIA4IW · pith_short_16: ZDKVSUDIA4IWZ2LJ · pith_short_8: ZDKVSUDI

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/ZDKVSUDIA4IWZ2LJZU73VMP54L \
  | 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: c8d559506807116ce969cd3fbab1fde2f595753a9b9c259f82731fd2e841bcbd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fe3caa8ba34702ea50b11c71c4ca386a23ddc75dd4de0c255b43210de83e1997",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-07-02T20:18:09Z",
    "title_canon_sha256": "0083870490e91263eebc74de9ff108515b25c866ea39417cf865df22bc0e2b92"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.0476",
    "kind": "arxiv",
    "version": 2
  }
}