Pith Number

pith:QXKIANVB

pith:2004:QXKIANVBRTDW5C62SWDQ55DOT6

not attested not anchored not stored refs pending

On the polar caps of the 3 Musketeers

A. De Luca, G.F. Bignami, M. Negroni, P.A. Caraveo, S. Mereghetti

arxiv:astro-ph/0412662 v1 · 2004-12-29 · 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{QXKIANVBRTDW5C62SWDQ55DOT6}

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	2026-07-04T16:45:29.388863Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

85d48036a18cc76e8bda95870ef46e9fabd40a6d006ca94b836ef09bb36e33bc

Aliases

arxiv: astro-ph/0412662 · arxiv_version: astro-ph/0412662v1 · doi: 10.48550/arxiv.astro-ph/0412662 · pith_short_12: QXKIANVBRTDW · pith_short_16: QXKIANVBRTDW5C62 · pith_short_8: QXKIANVB

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/QXKIANVBRTDW5C62SWDQ55DOT6 \
  | 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: 85d48036a18cc76e8bda95870ef46e9fabd40a6d006ca94b836ef09bb36e33bc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "712c52e503ed59db3efb930634a59ef852a75dd18b582360cd8d1746c209cf9b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-12-29T18:24:14Z",
    "title_canon_sha256": "b954cac927da4b8a125e35633431034c00c9398354a7eae46b7294394ee5163e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0412662",
    "kind": "arxiv",
    "version": 1
  }
}