Pith Number

pith:PFGMFCMS

pith:2006:PFGMFCMS7UDI7B4EUWFJ5AIB55

not attested not anchored not stored refs pending

On the nature of the hard X-ray source IGR J2018+4043

A.M.Bykov, A.M.Krassilchtchikov, E.B.Giacani, F.Lebrun, G.G.Pavlov, G.M.Dubner, G.Rauw, H.Bloemen, J.A.Kennea, J.Kaastra, J.-P.Swings, M.DeBecker, M.Renaud, R.Terrier, W.Hermsen, Yu.A.Uvarov

arxiv:astro-ph/0609676 v1 · 2006-09-25 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PFGMFCMS7UDI7B4EUWFJ5AIB55}

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	2026-05-18T04:28:57.598610Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

794cc28992fd068f8784a58a9e8101ef7df79c1471b436687fc8f2d627bbbdcf

Aliases

arxiv: astro-ph/0609676 · arxiv_version: astro-ph/0609676v1 · doi: 10.48550/arxiv.astro-ph/0609676 · pith_short_12: PFGMFCMS7UDI · pith_short_16: PFGMFCMS7UDI7B4E · pith_short_8: PFGMFCMS

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/PFGMFCMS7UDI7B4EUWFJ5AIB55 \
  | 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: 794cc28992fd068f8784a58a9e8101ef7df79c1471b436687fc8f2d627bbbdcf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a31ef748b2e300cb3c301a2083050214f70c70c9e05c54dd5c679a5a1829865a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-09-25T14:12:58Z",
    "title_canon_sha256": "b714c3f6d7a8914e8b019490a148df9a1e6b98b15683c4d40eaf547e66ea6287"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0609676",
    "kind": "arxiv",
    "version": 1
  }
}