Pith Number

pith:ZY4RGBZK

pith:2012:ZY4RGBZKI6PDZJBXZHHDO4ZVZH

not attested not anchored not stored refs pending

The past, present and future of Galactic planetary nebula surveys

((1) Department of Physics, 2, 2), (2) Macquarie University Research Centre in Astronomy, 3), (3) Australian Astronomical Observatory, (4) Observatoire Astronomique de Strasbourg, (5) South African Astronomical Observatory), A. Acker (4), Astronomy, Astrophotonics, Astrophysics, B. Miszalski (5), D.J. Frew (1, Macquarie University, Quentin A. Parker (1

arxiv:1203.1694 v1 · 2012-03-08 · 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{ZY4RGBZKI6PDZJBXZHHDO4ZVZH}

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	2026-05-18T01:58:13.169931Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ce3913072a479e3ca437c9ce377335c9e59c20a2fcda310502ec7312b8d6fd7a

Aliases

arxiv: 1203.1694 · arxiv_version: 1203.1694v1 · doi: 10.48550/arxiv.1203.1694 · pith_short_12: ZY4RGBZKI6PD · pith_short_16: ZY4RGBZKI6PDZJBX · pith_short_8: ZY4RGBZK

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/ZY4RGBZKI6PDZJBXZHHDO4ZVZH \
  | 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: ce3913072a479e3ca437c9ce377335c9e59c20a2fcda310502ec7312b8d6fd7a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3e88fb684e5ffe797e1733f8c348f9ec110afc18f7a88dfbe7919cd8aa50fe20",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-03-08T05:47:04Z",
    "title_canon_sha256": "c3fb5d328968a058d03e9be933416aabbc40bca3efae00b8560831caddf3093e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.1694",
    "kind": "arxiv",
    "version": 1
  }
}