Pith Number

pith:U5RUMRA7

pith:2012:U5RUMRA74VMBT45HCW4V4PADQC

not attested not anchored not stored refs pending

Ionization structure and chemical abundances of the Wolf-Rayet nebula NGC6888 with integral field spectroscopy

A. Fern\'andez-Mart\'in, A. Riera, D. Mart\'in-Gord\'on, E. P\'erez Montero, J.M. V\'ilchez, S. F. S\'anchez

arxiv:1204.5742 v1 · 2012-04-25 · 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{U5RUMRA74VMBT45HCW4V4PADQC}

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	2026-05-18T01:57:44.230732Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a76346441fe55819f3a715b95e3c0380b19d0987bc9a5c189e738fed15dfc405

Aliases

arxiv: 1204.5742 · arxiv_version: 1204.5742v1 · doi: 10.48550/arxiv.1204.5742 · pith_short_12: U5RUMRA74VMB · pith_short_16: U5RUMRA74VMBT45H · pith_short_8: U5RUMRA7

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/U5RUMRA74VMBT45HCW4V4PADQC \
  | 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: a76346441fe55819f3a715b95e3c0380b19d0987bc9a5c189e738fed15dfc405

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5ce370ebaba6c1bcdc9dd0901b5f2e881a50f92213853bdf5cf8770ec124a8bc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-04-25T11:53:03Z",
    "title_canon_sha256": "dda4f42fd1d453e7a67e8045939ee1218578b225b46e40b1d1e421d78e6ce2a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.5742",
    "kind": "arxiv",
    "version": 1
  }
}