Pith Number

pith:JWR2GT7O

pith:2009:JWR2GT7OMTIVGWAC76R5XYQOIV

not attested not anchored not stored refs pending

Deriving the Coronal Hole Electron Temperature: Electron Density Dependent Ionization/Recombination Considerations

A. Singh, D. Perez-Suarez, D.W. Savin, H. Summers, J.G. Doyle, P. Bryans, S. Chapman

arxiv:0909.3195 v2 · 2009-09-17 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JWR2GT7OMTIVGWAC76R5XYQOIV}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T02:34:29.725537Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4da3a34fee64d1535802ffa3dbe20e457c25ee655e248a2bad357cc84770ef6e

Aliases

arxiv: 0909.3195 · arxiv_version: 0909.3195v2 · doi: 10.48550/arxiv.0909.3195 · pith_short_12: JWR2GT7OMTIV · pith_short_16: JWR2GT7OMTIVGWAC · pith_short_8: JWR2GT7O

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/JWR2GT7OMTIVGWAC76R5XYQOIV \
  | 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: 4da3a34fee64d1535802ffa3dbe20e457c25ee655e248a2bad357cc84770ef6e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f46b05e70ac6cb3835535e08c41631ac406ffba801a2fcec4078b1ab7e265f64",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-09-17T12:02:29Z",
    "title_canon_sha256": "c73f4a3c243afe5b99f5c4826e059f6ed877fbc8927579367a30e017443f8981"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.3195",
    "kind": "arxiv",
    "version": 2
  }
}