Pith Number

pith:Y5JQIE3Y

pith:2011:Y5JQIE3YTHY35CYLPBDYVAVWUI

not attested not anchored not stored refs pending

The formation of sunspot penumbra. I. Magnetic field properties

Nazaret Bello Gonzalez, Reza Rezaei, Rolf Schlichenmaier

arxiv:1111.3189 v1 · 2011-11-14 · 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{Y5JQIE3YTHY35CYLPBDYVAVWUI}

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	2026-05-18T04:08:22.838923Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c75304137899f1be8b0b78478a82b6a2233f6acef9d8bab0217c66a730bc7461

Aliases

arxiv: 1111.3189 · arxiv_version: 1111.3189v1 · doi: 10.48550/arxiv.1111.3189 · pith_short_12: Y5JQIE3YTHY3 · pith_short_16: Y5JQIE3YTHY35CYL · pith_short_8: Y5JQIE3Y

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/Y5JQIE3YTHY35CYLPBDYVAVWUI \
  | 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: c75304137899f1be8b0b78478a82b6a2233f6acef9d8bab0217c66a730bc7461

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "955a343a054bad77a362e1f9b04c68c071a38b356f1055781820204c17b15631",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-11-14T12:15:57Z",
    "title_canon_sha256": "e37df2de435a9f33316215bede22512c6f09cd49409abf39c4ed26aec5e1eb51"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.3189",
    "kind": "arxiv",
    "version": 1
  }
}