Pith Number

pith:B5DEIFLM

pith:2009:B5DEIFLMAKCMEII2TTZRMCH36Y

not attested not anchored not stored refs pending

Characteristic Dependence of Umbral Dots on their Magnetic Structure

Hiroko Watanabe, Kiyoshi Ichimoto, Reizaburo Kitai

arxiv:0907.2750 v1 · 2009-07-16 · 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{B5DEIFLMAKCMEII2TTZRMCH36Y}

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	2026-05-18T02:13:02.542248Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0f4644156c0284c2211a9cf31608fbf62b14166760d37f8d30d8468d299eea3f

Aliases

arxiv: 0907.2750 · arxiv_version: 0907.2750v1 · doi: 10.48550/arxiv.0907.2750 · pith_short_12: B5DEIFLMAKCM · pith_short_16: B5DEIFLMAKCMEII2 · pith_short_8: B5DEIFLM

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/B5DEIFLMAKCMEII2TTZRMCH36Y \
  | 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: 0f4644156c0284c2211a9cf31608fbf62b14166760d37f8d30d8468d299eea3f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d966fc0a766b3f9cc1257dc35ec0731b4fc7a36c896d03ddc57af8bbef6bf95d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-07-16T05:18:16Z",
    "title_canon_sha256": "ee4560fac8e962b192815a8778deb67f8d0649eb268fad15ca8182d21320aa47"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.2750",
    "kind": "arxiv",
    "version": 1
  }
}