Pith Number

pith:F3HDNNE2

pith:2010:F3HDNNE23HKGMPMFGUK2EMOMYK

not attested not anchored not stored refs pending

X-ray Emission from the Binary Central Stars of the Planetary Nebulae HFG 1, DS 1, and LoTr 5

Joel H. Kastner, Orsola De Marco, Rodolfo Montez Jr., You-Hua Chu

arxiv:1008.2910 v1 · 2010-08-17 · 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{F3HDNNE23HKGMPMFGUK2EMOMYK}

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	2026-05-18T02:05:47.438995Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2ece36b49ad9d4663d853515a231ccc28228299b9f13dbaaf3e2fc4ab3fff99a

Aliases

arxiv: 1008.2910 · arxiv_version: 1008.2910v1 · doi: 10.48550/arxiv.1008.2910 · pith_short_12: F3HDNNE23HKG · pith_short_16: F3HDNNE23HKGMPMF · pith_short_8: F3HDNNE2

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/F3HDNNE23HKGMPMFGUK2EMOMYK \
  | 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: 2ece36b49ad9d4663d853515a231ccc28228299b9f13dbaaf3e2fc4ab3fff99a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "56331be4cf082d370af0541812eda744d0a08b619e1d58948d2ac6ecf7917f9f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-08-17T14:53:25Z",
    "title_canon_sha256": "92a523d0023634b99ed1df0e0729ba3bda83b8994af19aff32bc4e318d4bc93c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.2910",
    "kind": "arxiv",
    "version": 1
  }
}