Pith Number

pith:V2OAHBHF

pith:1998:V2OAHBHF5MG2GYNUZYAPPDZANA

not attested not anchored not stored refs pending

The two-hour orbit of a binary millisecond X-ray pulsar

Deepto Chakrabarty (MIT), Edward H. Morgan (MIT)

arxiv:astro-ph/9804248 v2 · 1998-04-23 · 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{V2OAHBHF5MG2GYNUZYAPPDZANA}

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

Pulse profile modelling of the 2024 outburst of the accreting millisecond pulsar SRGA J144459.2-604207

Receipt and verification

First computed	2026-07-04T16:06:19.923896Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ae9c0384e5eb0da361b4ce00f78f20680523fe401f7aab35e69c10d742e66480

Aliases

arxiv: astro-ph/9804248 · arxiv_version: astro-ph/9804248v2 · doi: 10.48550/arxiv.astro-ph/9804248 · pith_short_12: V2OAHBHF5MG2 · pith_short_16: V2OAHBHF5MG2GYNU · pith_short_8: V2OAHBHF

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/V2OAHBHF5MG2GYNUZYAPPDZANA \
  | 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: ae9c0384e5eb0da361b4ce00f78f20680523fe401f7aab35e69c10d742e66480

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "81e62720675a63665eb367bc4002000e84a02f111859525ebd38f1d306bbe622",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-04-23T17:23:20Z",
    "title_canon_sha256": "ab8d79b211879be3932e3c5e747353fd9218ed02af78ebf1256cfab97616ea15"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9804248",
    "kind": "arxiv",
    "version": 2
  }
}