Pith Number

pith:VMHFWQXS

pith:2004:VMHFWQXSFE7INM6JHD5TRBOK6B

not attested not anchored not stored refs pending

A Circular Planetary Nebula around the OH/IR Star OH 354.88-0.54 (V1018 Sco)

(2) Macquarie University, 3), (4) Australia Telescope National Facility), Australia (3) Anglo-Australian Observatory, Jessica Chapman (4) ((1) UC. Berkeley, Martin Cohen (1), Quentin A Parker (2, Sydney

arxiv:astro-ph/0412175 v1 · 2004-12-08 · 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{VMHFWQXSFE7INM6JHD5TRBOK6B}

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	2026-05-18T04:27:04.365974Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ab0e5b42f2293e86b3c938fb3885caf06a0d99f333564ebeb41bc55b0bdb3c8a

Aliases

arxiv: astro-ph/0412175 · arxiv_version: astro-ph/0412175v1 · doi: 10.48550/arxiv.astro-ph/0412175 · pith_short_12: VMHFWQXSFE7I · pith_short_16: VMHFWQXSFE7INM6J · pith_short_8: VMHFWQXS

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/VMHFWQXSFE7INM6JHD5TRBOK6B \
  | 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: ab0e5b42f2293e86b3c938fb3885caf06a0d99f333564ebeb41bc55b0bdb3c8a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "05891a9601f8c4e2aea586639e62f2b356c6027e1b7509808373a07e04d0703e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-12-08T04:41:02Z",
    "title_canon_sha256": "54e709a6df2c4a93138617cbd1422ee292c49bbc023d5cc09eccf09b0777f515"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0412175",
    "kind": "arxiv",
    "version": 1
  }
}