Pith Number

pith:ZVJLWDR5

pith:2006:ZVJLWDR5AEKWD5RJ2UMR7JRJLE

not attested not anchored not stored refs pending

Infrared Observations of The Helix Planetary Nebula

Howard A. Smith, Joseph L. Hora, & Massimo Marengo, William B. Latter

arxiv:astro-ph/0607541 v1 · 2006-07-24 · 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{ZVJLWDR5AEKWD5RJ2UMR7JRJLE}

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.

Cited by

1 paper in Pith

Numerous bow shocks in the outer Helix Nebula

Receipt and verification

First computed	2026-07-04T15:19:09.250756Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cd52bb0e3d011561f629d5191fa629591982d18087bfe9eb239ecbb76fe4e9f3

Aliases

arxiv: astro-ph/0607541 · arxiv_version: astro-ph/0607541v1 · doi: 10.48550/arxiv.astro-ph/0607541 · pith_short_12: ZVJLWDR5AEKW · pith_short_16: ZVJLWDR5AEKWD5RJ · pith_short_8: ZVJLWDR5

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/ZVJLWDR5AEKWD5RJ2UMR7JRJLE \
  | 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: cd52bb0e3d011561f629d5191fa629591982d18087bfe9eb239ecbb76fe4e9f3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "16141dd9edf99267a1bd672de5243a82a7aa1fdbe73f453e07bd11eeff3badfe",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-07-24T15:49:01Z",
    "title_canon_sha256": "ca74a92dd5abdcf82e1a652ad03530f82ec07b470752ba4161603622e556dd77"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0607541",
    "kind": "arxiv",
    "version": 1
  }
}