Pith Number

pith:QDAAAM54

pith:2000:QDAAAM54XHL4VGFQH2LEJYLTVN

not attested not anchored not stored refs pending

The recent history of the X-ray absorber in NGC3516

2), 3), A.N.Parmar (2) ((1) XMM-Newton SOC, E; (2) Astrophysics Division, ESA, M.Guainazzi (1, NL; (3) Leicester University, Noordwijk, SSD of ESA, UK), Villafranca del Castillo, VILSPA, W.Marshall (2

arxiv:astro-ph/0010161 v1 · 2000-10-09 · 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{QDAAAM54XHL4VGFQH2LEJYLTVN}

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	2026-07-04T16:17:15.449624Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80c00033bcb9d7ca98b03e9644e173ab43967e0df970b833a4600849c81c7874

Aliases

arxiv: astro-ph/0010161 · arxiv_version: astro-ph/0010161v1 · doi: 10.48550/arxiv.astro-ph/0010161 · pith_short_12: QDAAAM54XHL4 · pith_short_16: QDAAAM54XHL4VGFQ · pith_short_8: QDAAAM54

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/QDAAAM54XHL4VGFQH2LEJYLTVN \
  | 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: 80c00033bcb9d7ca98b03e9644e173ab43967e0df970b833a4600849c81c7874

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5061b8058b925955e98cb0be717c37e31173d81118eab3ed1f0e46db48d14668",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-10-09T14:38:58Z",
    "title_canon_sha256": "81337452c9934da2c4e22ddd24ffeabafb7576428b2e42c33dd6b4bb25ab5559"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0010161",
    "kind": "arxiv",
    "version": 1
  }
}