Pith Number

pith:DWUQ2UAY

pith:2021:DWUQ2UAYU5ZMBVAAWAN73H2W6C

not attested not anchored not stored refs pending

Observations and analysis of CH$^+$ vibrational emissions from the young, carbon-rich planetary nebula NGC 7027: a textbook example of chemical pumping

Alexandre Faure (Grenoble), Benjamin Godard (Obs. Paris), David A. Neufeld (JHU), Helmut Wiesemeyer (MPIFR), Karl M. Menten (MPIfR), P. Bryan Changala (CfA), Rolf G\"usten (MPIFR), T. R. Geballe (Gemini)

arxiv:2105.14048 v1 · 2021-05-28 · 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{DWUQ2UAYU5ZMBVAAWAN73H2W6C}

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	2026-07-05T03:06:28.349172Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1da90d5018a772c0d400b01bfd9f56f09a3a7e1a1241ad26ddf7faaf33843294

Aliases

arxiv: 2105.14048 · arxiv_version: 2105.14048v1 · doi: 10.48550/arxiv.2105.14048 · pith_short_12: DWUQ2UAYU5ZM · pith_short_16: DWUQ2UAYU5ZMBVAA · pith_short_8: DWUQ2UAY

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/DWUQ2UAYU5ZMBVAAWAN73H2W6C \
  | 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: 1da90d5018a772c0d400b01bfd9f56f09a3a7e1a1241ad26ddf7faaf33843294

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ccd094e20c32f0f821a7db2f65a9f51a9b75e378d3d0506d3ac487060699a67e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-05-28T18:26:53Z",
    "title_canon_sha256": "746e623659c1b8daab743dd6b44e6ced7f07a2845fa843234447a4ed576b8a89"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.14048",
    "kind": "arxiv",
    "version": 1
  }
}