Pith Number

pith:6KJTKSZG

pith:1997:6KJTKSZGMLLPPQLK2WJZT5MGOW

not attested not anchored not stored refs pending

GX 349+2 (Sco X-2): An odd-ball among the Z sources

Erik Kuulkers (University of Oxford), Michiel van der Klis (University of Amsterdam)

arxiv:astro-ph/9712311 v1 · 1997-12-23 · 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{6KJTKSZGMLLPPQLK2WJZT5MGOW}

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

X-ray polarization study of the neutron star low-mass X-ray binary GX 349+2

Receipt and verification

First computed	2026-07-04T14:15:36.561361Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f293354b2662d6f7c16ad59399f586758285b7c146bbf91990d33817ab8687c2

Aliases

arxiv: astro-ph/9712311 · arxiv_version: astro-ph/9712311v1 · doi: 10.48550/arxiv.astro-ph/9712311 · pith_short_12: 6KJTKSZGMLLP · pith_short_16: 6KJTKSZGMLLPPQLK · pith_short_8: 6KJTKSZG

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/6KJTKSZGMLLPPQLK2WJZT5MGOW \
  | 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: f293354b2662d6f7c16ad59399f586758285b7c146bbf91990d33817ab8687c2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "787a537abb596a7ebd25b94e8e4e5174dc118f761aae2efc73304e745c3d8a5c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-12-23T17:00:41Z",
    "title_canon_sha256": "3363a41ca4a0b179976f9a392de51e79e16aead8dc4472fad5c1dc1d116be067"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9712311",
    "kind": "arxiv",
    "version": 1
  }
}