Pith Number

pith:WGK42OYY

pith:2016:WGK42OYYNYKJP3NCBOLCQ3FU3M

not attested not anchored not stored refs pending

NuSTAR observations of the supergiant X-ray pulsar IGR J18027-2016: accretion from the stellar wind and possible cyclotron absorption line

A.Lutovinov, J.Tomsick, K.Postnov, R.Krivonos, S.Molkov, S.Tsygankov

arxiv:1609.02942 v2 · 2016-09-08 · 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{WGK42OYYNYKJP3NCBOLCQ3FU3M}

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	2026-05-18T00:53:58.833680Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b195cd3b186e1497eda20b96286cb4db1e1dc49e202d94e570405e4f81e43a88

Aliases

arxiv: 1609.02942 · arxiv_version: 1609.02942v2 · doi: 10.48550/arxiv.1609.02942 · pith_short_12: WGK42OYYNYKJ · pith_short_16: WGK42OYYNYKJP3NC · pith_short_8: WGK42OYY

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/WGK42OYYNYKJP3NCBOLCQ3FU3M \
  | 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: b195cd3b186e1497eda20b96286cb4db1e1dc49e202d94e570405e4f81e43a88

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "05677912e61f4ece9aa749eb20e1d6a4f3724b65a101e291fd0f59b49d450ca3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2016-09-08T17:03:09Z",
    "title_canon_sha256": "e35c03aa49da4e7264c2b1beec73ce1aca73ed12170fd23bbfdbded6b8f091a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.02942",
    "kind": "arxiv",
    "version": 2
  }
}