Pith Number

pith:F4CUN6I3

pith:2003:F4CUN6I33Q2PUQS4I3KEXFR3XJ

not attested not anchored not stored refs pending

Discovery of X-ray absorption lines from the low-mass X-ray binaries 4U 1916-053 and X 1254-069 with XMM-Newton

(2) CESR, (3) Laboratoire d'Astrophysique de Marseille, A. N. Parmar (1), D. Barret (2), ESTEC, France, France), L. Boirin (1), Noordwijk, S. Paltani (3) ((1) ESA, The Netherlands, Toulouse

arxiv:astro-ph/0309352 v1 · 2003-09-12 · 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{F4CUN6I33Q2PUQS4I3KEXFR3XJ}

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	2026-07-04T16:51:38.853564Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f0546f91bdc34fa425c46d44b963bba7f4d73c15006d29d0e22c46278d12356

Aliases

arxiv: astro-ph/0309352 · arxiv_version: astro-ph/0309352v1 · doi: 10.48550/arxiv.astro-ph/0309352 · pith_short_12: F4CUN6I33Q2P · pith_short_16: F4CUN6I33Q2PUQS4 · pith_short_8: F4CUN6I3

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/F4CUN6I33Q2PUQS4I3KEXFR3XJ \
  | 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: 2f0546f91bdc34fa425c46d44b963bba7f4d73c15006d29d0e22c46278d12356

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d4ed2fae4de3613b7aba0ef38cd255d6eb85ccee5b18fa59363f9792782f32c9",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-09-12T12:22:28Z",
    "title_canon_sha256": "c2b02808a681fcb7d3d3ac3c459b100fee31eb270a811c52fe81740d0081323f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0309352",
    "kind": "arxiv",
    "version": 1
  }
}