Pith Number

pith:R7MHMQWB

pith:2009:R7MHMQWBY6C4SUMRHS7YZTCSRH

not attested not anchored not stored refs pending

A multi-wavelength study of the young star V1118 Orionis in outburst

C. Baldovin-Saavedra, E.F. Guinan, F.M. Walter, G.S. Stringfellow, K.R. Briggs, M. Audard, M. G\"udel, R.T. Hamilton, S.L. Skinner

arxiv:0912.3224 v1 · 2009-12-16 · astro-ph.SR · astro-ph.HE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{R7MHMQWBY6C4SUMRHS7YZTCSRH}

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	2026-05-18T02:10:16.340333Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8fd87642c1c785c951913cbf8ccc5289e51ff108a0c6db7f7addc98e04eb3f4d

Aliases

arxiv: 0912.3224 · arxiv_version: 0912.3224v1 · doi: 10.48550/arxiv.0912.3224 · pith_short_12: R7MHMQWBY6C4 · pith_short_16: R7MHMQWBY6C4SUMR · pith_short_8: R7MHMQWB

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/R7MHMQWBY6C4SUMRHS7YZTCSRH \
  | 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: 8fd87642c1c785c951913cbf8ccc5289e51ff108a0c6db7f7addc98e04eb3f4d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f246bcf613f28bc5c942b3da2d1baf54cae3cb6dac6516c37e8ceefd116359fe",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-12-16T18:42:39Z",
    "title_canon_sha256": "d19f9ef2392b9a7fe564999a1581648a53250ce9b1d5821039484eaf55fc43fe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.3224",
    "kind": "arxiv",
    "version": 1
  }
}