Pith Number

pith:M7LTOKYD

pith:2002:M7LTOKYDKJ3MTLDQQ63SX6LPWF

not attested not anchored not stored refs pending

High-Resolution X-ray Spectroscopy of Hercules X-1 with the XMM-Newton RGS: CNO Element Abundance Measurements and Density Diagnostics of a Photoionized Plasma

2), (2) Columbia University, (3) SRON Utrecht, (4) MSSL/UCL), C. J. Hailey (2), G. Ramsay (4) ((1) MIT Center for Space Research, J. W. den Herder (3), M. A. Jimenez-Garate (1, S. Zane (4)

arxiv:astro-ph/0206181 v1 · 2002-06-12 · 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{M7LTOKYDKJ3MTLDQQ63SX6LPWF}

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

Observations of the X-ray Millihertz Quasiperiodic Oscillations in Hercules X-1

Receipt and verification

First computed	2026-07-04T16:30:11.211442Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

67d7372b035276c9ac7087b72bf96fb16956d5a1e32154dc45ed7b87b043b038

Aliases

arxiv: astro-ph/0206181 · arxiv_version: astro-ph/0206181v1 · doi: 10.48550/arxiv.astro-ph/0206181 · pith_short_12: M7LTOKYDKJ3M · pith_short_16: M7LTOKYDKJ3MTLDQ · pith_short_8: M7LTOKYD

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/M7LTOKYDKJ3MTLDQQ63SX6LPWF \
  | 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: 67d7372b035276c9ac7087b72bf96fb16956d5a1e32154dc45ed7b87b043b038

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b9e8405c5b1425093ad2948afd71497532b13b706181e5c8b226e8b40bdd2952",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-06-12T01:36:42Z",
    "title_canon_sha256": "31bac13d334fe27dd94de86b722fc381762734caf1cf463af71b6bdc0f52fd44"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0206181",
    "kind": "arxiv",
    "version": 1
  }
}