Pith Number

pith:OI34GXY4

pith:2011:OI34GXY47XL2L2WY23POIA6IFT

not attested not anchored not stored refs pending

What determines the penumbral size and Evershed flow speed?

Debi Prasad Choudhary, Haimin Wang, Na Deng, Toshifumi Shimizu

arxiv:1102.3164 v2 · 2011-02-15 · 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{OI34GXY47XL2L2WY23POIA6IFT}

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	2026-05-18T02:03:10.751463Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7237c35f1cfdd7a5ead8d6dee403c82cfbdc9e4d3dd6b9869e0a687238b48218

Aliases

arxiv: 1102.3164 · arxiv_version: 1102.3164v2 · doi: 10.48550/arxiv.1102.3164 · pith_short_12: OI34GXY47XL2 · pith_short_16: OI34GXY47XL2L2WY · pith_short_8: OI34GXY4

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/OI34GXY47XL2L2WY23POIA6IFT \
  | 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: 7237c35f1cfdd7a5ead8d6dee403c82cfbdc9e4d3dd6b9869e0a687238b48218

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77fd74a1c89f0eff440d289769633c2b33fa91de923d25aa1e7bc42f2efa8e4b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-02-15T19:41:33Z",
    "title_canon_sha256": "40804c597437bdf9f6ce3eb31349392c4657212119e057ff64c489b39c288fc9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.3164",
    "kind": "arxiv",
    "version": 2
  }
}