Pith Number

pith:ZAFQ7DCA

pith:2009:ZAFQ7DCAQ6R2X7BP53FFWATDZQ

not attested not anchored not stored refs pending

On the electron temperatures in high-metallicity HII regions

B.Cedres, J.M.Vilchez, L.Mattsson, L.S.Pilyugin

arxiv:0907.0084 v1 · 2009-07-01 · astro-ph.CO · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZAFQ7DCAQ6R2X7BP53FFWATDZQ}

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	2026-05-18T02:13:11.535093Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c80b0f8c4087a3abfc2feeca5b0263cc3b5c25a35424c89ea58a6286b2f68da7

Aliases

arxiv: 0907.0084 · arxiv_version: 0907.0084v1 · doi: 10.48550/arxiv.0907.0084 · pith_short_12: ZAFQ7DCAQ6R2 · pith_short_16: ZAFQ7DCAQ6R2X7BP · pith_short_8: ZAFQ7DCA

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/ZAFQ7DCAQ6R2X7BP53FFWATDZQ \
  | 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: c80b0f8c4087a3abfc2feeca5b0263cc3b5c25a35424c89ea58a6286b2f68da7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e795eeecfcb2d28d6ef1208380f1f9187bf4b730dfe865f3f95ae37c9615b7a8",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-07-01T08:22:38Z",
    "title_canon_sha256": "ba01d899ce46ea89e91cd11b5d3bc5d21ca68354e6e91b53c993951895946778"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.0084",
    "kind": "arxiv",
    "version": 1
  }
}