Pith Number

pith:XUKTA6JG

pith:2013:XUKTA6JGELQTWSNGF2H4CJ5TDJ

not attested not anchored not stored refs pending

Mid-Infrared Imaging of the Bipolar Planetary Nebula M2-9 from SOFIA

C. Henderson, F. Lykou, G. Gull, J. Adams, J. Davis, J. de Buizer, J. Livingston, J. Schoenwald, L. Keller, M. R. Morris, M. W. Werner, R. Sahai, T. Herter

arxiv:1311.4949 v1 · 2013-11-20 · 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{XUKTA6JGELQTWSNGF2H4CJ5TDJ}

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	2026-05-18T01:46:22.666404Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bd1530792622e13b49a62e8fc127b31a7dde0e00a6cb5e2eb27e856809cd5f10

Aliases

arxiv: 1311.4949 · arxiv_version: 1311.4949v1 · doi: 10.48550/arxiv.1311.4949 · pith_short_12: XUKTA6JGELQT · pith_short_16: XUKTA6JGELQTWSNG · pith_short_8: XUKTA6JG

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/XUKTA6JGELQTWSNGF2H4CJ5TDJ \
  | 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: bd1530792622e13b49a62e8fc127b31a7dde0e00a6cb5e2eb27e856809cd5f10

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d04c26f020c1d1c61433be24176e80d21045361a575852c43ab34aafc724857e",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/publicdomain/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-11-20T04:00:49Z",
    "title_canon_sha256": "6ff9badd4c737156073fc60f52a740e95071c988f55837e5629dcba5aa73a70f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.4949",
    "kind": "arxiv",
    "version": 1
  }
}