Pith Number

pith:Q3COAQNX

pith:2004:Q3COAQNXIBWK7J7ZEBQLB6X3EG

not attested not anchored not stored refs pending

[O III]/[N II] as an Abundance Indicator at High Redshift

Bernard E J Pagel (Astronomy Centre, Max Pettini (Institute of Astronomy, Sussex University), University of Cambridge)

arxiv:astro-ph/0401128 v1 · 2004-01-08 · 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{Q3COAQNXIBWK7J7ZEBQLB6X3EG}

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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.

Cited by

1 paper in Pith

Toward Unbiased Abundance Measurements in Inhomogeneous $\mathrm{H\,II}$ Regions

Receipt and verification

First computed	2026-07-04T16:42:47.418399Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

86c4e041b7406cafa7f92060b0fafb21b3a00e21fe0f11c567b8b67047d3a908

Aliases

arxiv: astro-ph/0401128 · arxiv_version: astro-ph/0401128v1 · doi: 10.48550/arxiv.astro-ph/0401128 · pith_short_12: Q3COAQNXIBWK · pith_short_16: Q3COAQNXIBWK7J7Z · pith_short_8: Q3COAQNX

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/Q3COAQNXIBWK7J7ZEBQLB6X3EG \
  | 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: 86c4e041b7406cafa7f92060b0fafb21b3a00e21fe0f11c567b8b67047d3a908

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f3a09e2aeab181efd75cea4591c9fb8261c0bc74502a0e0f09401798d6ae6198",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-01-08T21:01:53Z",
    "title_canon_sha256": "3b7693a32da9319a7ca3b72564d0dba9637aee2e1bf1de9a15775ed18a7b0e99"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0401128",
    "kind": "arxiv",
    "version": 1
  }
}