Pith Number

pith:OU4YARBL

pith:2016:OU4YARBLZJ4GPMKA4J4QUNMIBK

not attested not anchored not stored refs pending

XSHOOTER spectroscopy of the enigmatic planetary nebula Lin49 in the Small Magellanic Cloud

(2) Leiden Observatory, (3) The Open University, (4) The University of Western Ontario, 5), (5) SETI Institute, 6), (6) STScI), B. Ochsendorf (2, E. Peeters (4, F. Kemper (1), I. Aleman (2), J. Bernard-Salas (3), J. Cami (4, Masaaki Otsuka (1), M. L. Leal-Ferreira (2), P. Scicluna (1) ((1) Academia Sinica IAA

arxiv:1607.00936 v1 · 2016-07-04 · astro-ph.SR · 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{OU4YARBLZJ4GPMKA4J4QUNMIBK}

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	2026-05-18T01:08:38.386506Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

753980442bca7867b140e2790a35880a9aabc2cb071f4f2c9d9276156ee36e1a

Aliases

arxiv: 1607.00936 · arxiv_version: 1607.00936v1 · doi: 10.48550/arxiv.1607.00936 · pith_short_12: OU4YARBLZJ4G · pith_short_16: OU4YARBLZJ4GPMKA · pith_short_8: OU4YARBL

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/OU4YARBLZJ4GPMKA4J4QUNMIBK \
  | 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: 753980442bca7867b140e2790a35880a9aabc2cb071f4f2c9d9276156ee36e1a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "271b9a9393e92cfeef516e0eef98a9812ba95c49b78772e96fdc1da58b922fbc",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2016-07-04T15:40:58Z",
    "title_canon_sha256": "a39a682f8785d6f8f10537248e47cc82b2be7d552f3cc8458d49f92702464d2e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.00936",
    "kind": "arxiv",
    "version": 1
  }
}