Pith Number

pith:VE7OX6RG

pith:2007:VE7OX6RGE7TX6ETMPMXXOWJ4DC

not attested not anchored not stored refs pending

Balmer jump temperature determination in a large sample of low-metallicity H II regions

(2) Instituto de Astrofisica de Andalucia, 3), (3) Institute for astrophysics, Germany), Goettingen, Granada, K.J.Fricke (3) ((1) Main Astronomical Observatory, Kyiv, N.G.Guseva (1), P. Papaderos (2, Spain, Ukraine, Y.I.Izotov (1)

arxiv:astro-ph/0701032 v1 · 2007-01-02 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VE7OX6RGE7TX6ETMPMXXOWJ4DC}

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	2026-05-18T00:14:41.795651Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a93eebfa2627e77f126c7b2f77593c1899574f1c4ac8a7d1160ae50f1e726e46

Aliases

arxiv: astro-ph/0701032 · arxiv_version: astro-ph/0701032v1 · doi: 10.48550/arxiv.astro-ph/0701032 · pith_short_12: VE7OX6RGE7TX · pith_short_16: VE7OX6RGE7TX6ETM · pith_short_8: VE7OX6RG

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/VE7OX6RGE7TX6ETMPMXXOWJ4DC \
  | 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: a93eebfa2627e77f126c7b2f77593c1899574f1c4ac8a7d1160ae50f1e726e46

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a502addeefd6c891f89572c622ae00a7d2d87e63e93f3c0b5cc224f2eac9eb5d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-01-02T12:59:21Z",
    "title_canon_sha256": "5113f8782594b7cf5f2dda4ce48104801698460993374744764277eb7642b8fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0701032",
    "kind": "arxiv",
    "version": 1
  }
}