Pith Number

pith:JNPW5ORA

pith:2010:JNPW5ORAQPSTIFLFGEBJNOVKP2

not attested not anchored not stored refs pending

Unresolved X-ray emission in M31 and constraints on progenitors of Classical Novae

Akos Bogdan (MPA), IKI), Marat Gilfanov (MPA

arxiv:1002.3353 v1 · 2010-02-17 · astro-ph.GA · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JNPW5ORAQPSTIFLFGEBJNOVKP2}

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	2026-05-18T02:09:00.063878Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4b5f6eba2083e5341565310296baaa7e8cdf3908bce556895bc8d031c0f9fa42

Aliases

arxiv: 1002.3353 · arxiv_version: 1002.3353v1 · doi: 10.48550/arxiv.1002.3353 · pith_short_12: JNPW5ORAQPST · pith_short_16: JNPW5ORAQPSTIFLF · pith_short_8: JNPW5ORA

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/JNPW5ORAQPSTIFLFGEBJNOVKP2 \
  | 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: 4b5f6eba2083e5341565310296baaa7e8cdf3908bce556895bc8d031c0f9fa42

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e89b41e75cdda37c4e0e6a7c3a6155ac3ba643c7a7ef97740cce13355be6d91d",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2010-02-17T19:52:29Z",
    "title_canon_sha256": "e6cb1c7ebd7c181612c34397cb65c8fee600fd6bd2e1b1a38762a911050133ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1002.3353",
    "kind": "arxiv",
    "version": 1
  }
}