Pith Number

pith:42IL3LBO

pith:2018:42IL3LBO3P6UGSGXC3WDCVMERV

not attested not anchored not stored refs pending

An Imaging Spectroscopic Survey of the Planetary Nebula NGC 7009 with MUSE

(10) Leiden Observatory, (11) Kyoto University Honjo), (2) IAC, 3), (3) Universidad de La Laguna, (4) UCL, (5) University of Denver, (6) Jodrell Bank Centre for Astrophysics, 7), (7) University of Hong Kong (8) Universidad Catolica del Norte, 9), (9) Leopold Franzens University Innsbruck, A. A. Zijlstra (6, A. Monreal-Ibero (2, J. R. Walsh (1), M. J. Barlow (4), M. L. Leal-Ferreira (10), M. Otsuka (11) ((1) ESO, R. Wesson (4), S. Kimeswenger (8, T. Ueta (5)

arxiv:1810.03984 v1 · 2018-10-09 · 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{42IL3LBO3P6UGSGXC3WDCVMERV}

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	2026-05-17T23:58:02.031277Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e690bdac2edbfd4348d716ec3155848d7fc0d3e4439c6e57276289d0dd68ca11

Aliases

arxiv: 1810.03984 · arxiv_version: 1810.03984v1 · doi: 10.48550/arxiv.1810.03984 · pith_short_12: 42IL3LBO3P6U · pith_short_16: 42IL3LBO3P6UGSGX · pith_short_8: 42IL3LBO

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/42IL3LBO3P6UGSGXC3WDCVMERV \
  | 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: e690bdac2edbfd4348d716ec3155848d7fc0d3e4439c6e57276289d0dd68ca11

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "460d1f34d22cb0f42a622477f53a54c09f4bcf61f5e0072293401badcbef7194",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-10-09T13:49:08Z",
    "title_canon_sha256": "83720c08da5cc2a876ece2b5ff0f6b06ba2a50a15d5f5fe85c0a7793190686b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.03984",
    "kind": "arxiv",
    "version": 1
  }
}