Pith Number

pith:57YSXN4A

pith:2019:57YSXN4AYCEPAHOXPOGXG3XVLU

not attested not anchored not stored refs pending

X-Ray spectral evolution of PSR~J2032+4127 during the 2017 periastron passage

Albert K.H. Kong, Can Gungor, Kwan Lok Li, Partha Sarathi Pal, P. H. Thomas Tam, Yudong Cui

arxiv:1907.05685 v2 · 2019-07-12 · 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{57YSXN4AYCEPAHOXPOGXG3XVLU}

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	2026-07-05T00:10:02.902981Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eff12bb780c088f01dd77b8d736ef55d16fd5bdd95191b31afa6738de2fff4ce

Aliases

arxiv: 1907.05685 · arxiv_version: 1907.05685v2 · doi: 10.48550/arxiv.1907.05685 · pith_short_12: 57YSXN4AYCEP · pith_short_16: 57YSXN4AYCEPAHOX · pith_short_8: 57YSXN4A

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/57YSXN4AYCEPAHOXPOGXG3XVLU \
  | 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: eff12bb780c088f01dd77b8d736ef55d16fd5bdd95191b31afa6738de2fff4ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "83c3b223c10b9612846182de246ca37fbff1161f1210f2207694a3fb2373fc02",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-07-12T11:50:48Z",
    "title_canon_sha256": "677af5527937717044c72bfd2684d7486ee93e803d5ea76a1985c991d356918e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.05685",
    "kind": "arxiv",
    "version": 2
  }
}