Pith Number

pith:F73DCHL5

pith:2005:F73DCHL5MYFFQNZRLOWD2JEBM2

not attested not anchored not stored refs pending

The same physics underlying SGRs, AXPs, and radio pulsars

Biping Gong

arxiv:astro-ph/0504170 v2 · 2005-04-07 · 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{F73DCHL5MYFFQNZRLOWD2JEBM2}

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	2026-05-18T01:07:31.481531Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2ff6311d7d660a5837315bac3d248166bc7034cdeef75ee34a61354e5eef3eb8

Aliases

arxiv: astro-ph/0504170 · arxiv_version: astro-ph/0504170v2 · doi: 10.48550/arxiv.astro-ph/0504170 · pith_short_12: F73DCHL5MYFF · pith_short_16: F73DCHL5MYFFQNZR · pith_short_8: F73DCHL5

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/F73DCHL5MYFFQNZRLOWD2JEBM2 \
  | 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: 2ff6311d7d660a5837315bac3d248166bc7034cdeef75ee34a61354e5eef3eb8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b16452fda3a849593b2e0f2b6a065d7653a41b4474efa2be2d7c1cbc9afcc3a2",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-04-07T03:07:10Z",
    "title_canon_sha256": "896ed6c3388a57c29f311c7f24b9e7d2b80a1c3ffa6d81d14ae71c8fb3795e18"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0504170",
    "kind": "arxiv",
    "version": 2
  }
}