Pith Number

pith:CXCGERHS

pith:2010:CXCGERHSYFFPRVDMNLQNSMMBHG

not attested not anchored not stored refs pending

The central star of the planetary nebula PB 8: a Wolf-Rayet-type wind of an unusual WN/WC chemical composition

(2) Instituto de Astronom\'ia, (3) Armagh Observatory, Astronomy, College Hill, Germany, G. Gr\"afener (3) ((1) University of Potsdam, H. Todt (1), Institute for Physics, M\'exico D.F. M\'exico, M. Pe\~na (2), Northern Ireland), Potsdam, Universidad Nacional Aut\'onoma de M\'exico, W.-R. Hamann (1)

arxiv:1003.3419 v1 · 2010-03-17 · astro-ph.SR

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

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	2026-05-18T02:08:26.387364Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

15c46244f2c14af8d46c6ae0d93181399a0d0e9cf132c0592399449163430ea9

Aliases

arxiv: 1003.3419 · arxiv_version: 1003.3419v1 · doi: 10.48550/arxiv.1003.3419 · pith_short_12: CXCGERHSYFFP · pith_short_16: CXCGERHSYFFPRVDM · pith_short_8: CXCGERHS

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/CXCGERHSYFFPRVDMNLQNSMMBHG \
  | 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: 15c46244f2c14af8d46c6ae0d93181399a0d0e9cf132c0592399449163430ea9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "56eb42254091e3f80463940acd7f3076c11aac4842a2c15c59d86fd1badfd153",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-03-17T17:55:49Z",
    "title_canon_sha256": "2fe090e5773734ecf02e688e8ca98d0a41c947a45e94781ac867674b88d20d2d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1003.3419",
    "kind": "arxiv",
    "version": 1
  }
}