Pith Number

pith:TN4PFPIB

pith:1999:TN4PFPIB3BKGV54IJ3SHZO6PDB

not attested not anchored not stored refs pending

The Relativistic Astrophysics Explorer: A New Mission for X-Ray Timing

E.H. Morgan, F.K. Lamb, J. Grindlay, J.H. Swank, P. Kaaret, W. Zhang

arxiv:astro-ph/9911209 v1 · 1999-11-11 · 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{TN4PFPIB3BKGV54IJ3SHZO6PDB}

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	2026-07-04T14:17:18.776014Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9b78f2bd01d8546af7884ee47cbbcf1854e9d7c2dae5666289913e92ffa4d38e

Aliases

arxiv: astro-ph/9911209 · arxiv_version: astro-ph/9911209v1 · doi: 10.48550/arxiv.astro-ph/9911209 · pith_short_12: TN4PFPIB3BKG · pith_short_16: TN4PFPIB3BKGV54I · pith_short_8: TN4PFPIB

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/TN4PFPIB3BKGV54IJ3SHZO6PDB \
  | 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: 9b78f2bd01d8546af7884ee47cbbcf1854e9d7c2dae5666289913e92ffa4d38e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c49a8bbd6d6b62dc211f8b649f15404a045484f34907cb54feaaf49b9bd3360c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-11-11T16:25:17Z",
    "title_canon_sha256": "50574660785c269e5a2209166a04e854c3cf548517ca1bb9a8f94f3578968ffd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9911209",
    "kind": "arxiv",
    "version": 1
  }
}