Pith Number

pith:2K5NCPFN

pith:2011:2K5NCPFNFUP5AW2MVEV6E2HC7V

not attested not anchored not stored refs pending

Generation of Seed Magnetic Field around First Stars: the Biermann Battery Effect

Hajime Susa, Kentaro Doi

arxiv:1108.4504 v1 · 2011-08-23 · astro-ph.CO · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2K5NCPFNFUP5AW2MVEV6E2HC7V}

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	2026-05-18T02:00:49.428506Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d2bad13cad2d1fd05b4ca92be268e2fd774dc544d20d6b77c6caad472d4e6ee8

Aliases

arxiv: 1108.4504 · arxiv_version: 1108.4504v1 · doi: 10.48550/arxiv.1108.4504 · pith_short_12: 2K5NCPFNFUP5 · pith_short_16: 2K5NCPFNFUP5AW2M · pith_short_8: 2K5NCPFN

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/2K5NCPFNFUP5AW2MVEV6E2HC7V \
  | 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: d2bad13cad2d1fd05b4ca92be268e2fd774dc544d20d6b77c6caad472d4e6ee8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5bc38ceefcd1b412a4c823c35a430fb7aa110128681ab1e5bc2ff6af71ffbff3",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-08-23T06:39:01Z",
    "title_canon_sha256": "5cc63e70c8fe5fba22aef55fbd586ec7e6cec3a22a5855881f899ecb5bebb5ad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.4504",
    "kind": "arxiv",
    "version": 1
  }
}