Pith Number

pith:PZ6ZX3QN

pith:2011:PZ6ZX3QNML62VM32VFAZO2MCWF

not attested not anchored not stored refs pending

A double detached shell around a post-Red Supergiant:IRAS 17163-3907, the Fried Egg nebula

A.A. Zijlstra, D. Mekarnia, E. Lagadec, H. Van Winckel, N.L.J. Cox, R.D. Oudmaijer, R. Szczerba, T. Verhoelst

arxiv:1109.5947 v1 · 2011-09-27 · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PZ6ZX3QNML62VM32VFAZO2MCWF}

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	2026-05-18T02:00:22.630297Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e7d9bee0d62fdaab37aa941976982b16e8c8f2b31797ba4b0c8fad16e61a68c

Aliases

arxiv: 1109.5947 · arxiv_version: 1109.5947v1 · doi: 10.48550/arxiv.1109.5947 · pith_short_12: PZ6ZX3QNML62 · pith_short_16: PZ6ZX3QNML62VM32 · pith_short_8: PZ6ZX3QN

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/PZ6ZX3QNML62VM32VFAZO2MCWF \
  | 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: 7e7d9bee0d62fdaab37aa941976982b16e8c8f2b31797ba4b0c8fad16e61a68c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b7f50110d78f1b94a7e23efcb6e270a510ac6b92f09c23b05618e44a3d1b4a76",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-09-27T15:59:19Z",
    "title_canon_sha256": "d9b0eced7a71cc4f9215bc80df7c89e0ddc48ee53d52cd4eff49535a33f27896"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.5947",
    "kind": "arxiv",
    "version": 1
  }
}