Pith Number

pith:F4JGQFJ2

pith:2003:F4JGQFJ2DHZOFIH324XVSGQEML

not attested not anchored not stored refs pending

The "sigma" problem of the Crab pulsar wind

J.G. Kirk, O. Skjaeraasen

arxiv:astro-ph/0309573 v1 · 2003-09-22 · 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{F4JGQFJ2DHZOFIH324XVSGQEML}

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

Combined VERITAS and NuSTAR observations of the gamma-ray binary HESS J0632+057

Receipt and verification

First computed	2026-07-04T14:12:55.022055Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f1268153a19f2e2a0fbd72f591a0462ef62083719251806ace0e3f054ee7a5a

Aliases

arxiv: astro-ph/0309573 · arxiv_version: astro-ph/0309573v1 · doi: 10.48550/arxiv.astro-ph/0309573 · pith_short_12: F4JGQFJ2DHZO · pith_short_16: F4JGQFJ2DHZOFIH3 · pith_short_8: F4JGQFJ2

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/F4JGQFJ2DHZOFIH324XVSGQEML \
  | 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: 2f1268153a19f2e2a0fbd72f591a0462ef62083719251806ace0e3f054ee7a5a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "29d461d2e9ab526d5b441798f225c56a6c4ceee249f40952873aa8cde5b256c3",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-09-22T10:05:03Z",
    "title_canon_sha256": "164e311c2f4954f82cec2355da6757901dab7e41b2a6ea48c533d2bd31cdddf3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0309573",
    "kind": "arxiv",
    "version": 1
  }
}