Pith Number

pith:QUJM6N7K

pith:2023:QUJM6N7KVKBIF2HZJBAZAMCQZQ

not attested not anchored not stored refs pending

JWST observations of the Ring Nebula (NGC 6720): I. Imaging of the rings, globules, and arcs

Albert A. Zijlstra, A. Manchado, Els Peeters, Griet C. Van de Steene, Guillermo Garc\'ia-Segura, Harriet L. Dinerstein, I. McDonald, Isabel Aleman, Jan Cami, Jeronimo Bernard-Salas, Kevin Volk, K. Justtanont, Kyle F. Kaplan, Mikako Matsuura, M. J. Barlow, Nicholas Clark, Nick L. J. Cox, Patrick J. Kavanagh, Peter A. M. van Hoof, Raghvendra Sahai, R. Wesson

arxiv:2308.09027 v2 · 2023-08-17 · astro-ph.SR · 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{QUJM6N7KVKBIF2HZJBAZAMCQZQ}

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	2026-07-05T06:43:05.987404Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8512cf37eaaa8282e8f94841903050cc240c7050a1c4787f95bc051736950142

Aliases

arxiv: 2308.09027 · arxiv_version: 2308.09027v2 · doi: 10.48550/arxiv.2308.09027 · pith_short_12: QUJM6N7KVKBI · pith_short_16: QUJM6N7KVKBIF2HZ · pith_short_8: QUJM6N7K

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/QUJM6N7KVKBIF2HZJBAZAMCQZQ \
  | 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: 8512cf37eaaa8282e8f94841903050cc240c7050a1c4787f95bc051736950142

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "acb2c5a5421d66543c0cb468265898fbe02f41e7e7d89e003f25be0280be49fc",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2023-08-17T15:01:55Z",
    "title_canon_sha256": "2e4eea9eaed5b697f4ab20fe848efd28ac2880cc6708af1e15ca8f161a748a77"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2308.09027",
    "kind": "arxiv",
    "version": 2
  }
}