Pith Number

pith:WYJHTDSD

pith:2001:WYJHTDSDWIOC4T5RUE2IEON4C4

not attested not anchored not stored refs pending

The X-ray Spectrum of the Vela Pulsar Resolved with Chandra

D. Sanwal (PSU), G. Garmire (PSU), G.G. Pavlov (PSU), V. Burwitz (MPE), V.E Zavlin (MPE)

arxiv:astro-ph/0103171 v1 · 2001-03-12 · 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{WYJHTDSDWIOC4T5RUE2IEON4C4}

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	2026-05-18T01:07:45.984010Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b612798e43b21c2e4fb1a1348239bc1726ab62bb00f32a53d5e8366cb2ea0d69

Aliases

arxiv: astro-ph/0103171 · arxiv_version: astro-ph/0103171v1 · doi: 10.48550/arxiv.astro-ph/0103171 · pith_short_12: WYJHTDSDWIOC · pith_short_16: WYJHTDSDWIOC4T5R · pith_short_8: WYJHTDSD

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/WYJHTDSDWIOC4T5RUE2IEON4C4 \
  | 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: b612798e43b21c2e4fb1a1348239bc1726ab62bb00f32a53d5e8366cb2ea0d69

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e3aee2b50cf13b4fd7cd49268d97a71f5de9edf2f432ea488390f8185f97dbb9",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-03-12T16:59:25Z",
    "title_canon_sha256": "08dab9163d4ecc19fa224f1aa6da54117ff6f802ad6972e1472ffadf872eaf54"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0103171",
    "kind": "arxiv",
    "version": 1
  }
}