Pith Number

pith:Y53DOD4R

pith:2010:Y53DOD4RGIR73MFPMQ6RFUWI2Q

not attested not anchored not stored refs pending

New findings on the prototypical Of?p stars

A. ud-Doula (PennState Worth.), G. Rauw (ULg), M. De Becker (ULg, M. Spano (Obs Gen.), N.R. Walborn (STScI), OHP), Y. Naze (ULg)

arxiv:1006.2054 v1 · 2010-06-10 · 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{Y53DOD4RGIR73MFPMQ6RFUWI2Q}

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	2026-05-18T03:44:57.984788Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c776370f913223fdb0af643d12d2c8d4342ee93629fcc0b19ffdd77daef97469

Aliases

arxiv: 1006.2054 · arxiv_version: 1006.2054v1 · doi: 10.48550/arxiv.1006.2054 · pith_short_12: Y53DOD4RGIR7 · pith_short_16: Y53DOD4RGIR73MFP · pith_short_8: Y53DOD4R

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/Y53DOD4RGIR73MFPMQ6RFUWI2Q \
  | 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: c776370f913223fdb0af643d12d2c8d4342ee93629fcc0b19ffdd77daef97469

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ae1eaffbddf785b0472a1abd51422fd12830b7ef780e9b4edfbe59cb2454bb3a",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-06-10T15:09:36Z",
    "title_canon_sha256": "75d93d8e3498abdff02fa17fb6007f8acc584bec48a231760998caccc1ab5bc9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1006.2054",
    "kind": "arxiv",
    "version": 1
  }
}