Pith Number

pith:HCKM2Q23

pith:2019:HCKM2Q23DTTD4QYK7VZ6I66EFJ

not attested not anchored not stored refs pending

Updated orbital ephemeris of the ADC source X 1822-371: a stable orbital expansion over 40 years

A.F. Gambino, A. Marino, A. Riggio, A. Sanna, L. Burderi, M. Tailo, R. Iaria, S.M. Mazzola, T. Di Salvo

arxiv:1905.03149 v1 · 2019-05-08 · 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{HCKM2Q23DTTD4QYK7VZ6I66EFJ}

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.

Cited by

1 paper in Pith

The first IXPE view of the eclipsing ADC source 4U 1822-37

Receipt and verification

First computed	2026-05-17T23:45:26.511650Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3894cd435b1ce63e430afd73e47bc42a7e79075dfdd95ad9d2d140f93f6299ad

Aliases

arxiv: 1905.03149 · arxiv_version: 1905.03149v1 · doi: 10.48550/arxiv.1905.03149 · pith_short_12: HCKM2Q23DTTD · pith_short_16: HCKM2Q23DTTD4QYK · pith_short_8: HCKM2Q23

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/HCKM2Q23DTTD4QYK7VZ6I66EFJ \
  | 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: 3894cd435b1ce63e430afd73e47bc42a7e79075dfdd95ad9d2d140f93f6299ad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1179dde4509373bcd25b993d4ff712e3153c9814c9d4f0ee9a972f77381a4d2c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-05-08T15:24:46Z",
    "title_canon_sha256": "2247a0f2f5f99cf7951d11830ae5bd9239abbfbd285ee74c4198f58dbdf395a8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.03149",
    "kind": "arxiv",
    "version": 1
  }
}