Pith Number

pith:CVYZOE7B

pith:2004:CVYZOE7B5ENVSH3J2O7ANK2G65

not attested not anchored not stored refs pending

Unraveling the Helix Nebula: Its Structure and Knots

C. R. O'Dell, M. Meixner, P. R. McCullough

arxiv:astro-ph/0407556 v1 · 2004-07-27 · 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{CVYZOE7B5ENVSH3J2O7ANK2G65}

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

SDSS-V LVM: Revealing the Physical and Chemical Structure of the Helix Nebula

Receipt and verification

First computed	2026-07-04T16:44:23.471352Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

15719713e1e91b591f69d3be06ab46f762b7b86149c7f82250684980fa5b3d15

Aliases

arxiv: astro-ph/0407556 · arxiv_version: astro-ph/0407556v1 · doi: 10.48550/arxiv.astro-ph/0407556 · pith_short_12: CVYZOE7B5ENV · pith_short_16: CVYZOE7B5ENVSH3J · pith_short_8: CVYZOE7B

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/CVYZOE7B5ENVSH3J2O7ANK2G65 \
  | 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: 15719713e1e91b591f69d3be06ab46f762b7b86149c7f82250684980fa5b3d15

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "35f9c1279cd60ca6d54130f208fd9494c9aa20760cfac94c3c5295c588dfe6f6",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-07-27T16:51:43Z",
    "title_canon_sha256": "8e9b6dbdaef8f613c5d59b1ed85d7396c9f289a7c03807675d800fa2d81babea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0407556",
    "kind": "arxiv",
    "version": 1
  }
}