Pith Number

pith:MHW4BUVY

pith:2014:MHW4BUVYBZPZ4BIY6HUAFR3CQI

not attested not anchored not stored refs pending

Herschel imaging of the dust in the Helix Nebula (NGC 7293)

B. M. Swinyard, C. Waelkens, E. T. Polehampton, G.C. Van de Steene, G. Olofsson, H. L. Gomez, H. Van Winckel, J. Cernicharo, J. R. Goicoechea, K. M. Exter, M. A. T. Groenewegen, M. Etxaluze, M. J. Barlow, M. Matsuura, P. A. M. van Hoof, P. C. Hargrave, R. J. Ivison, R. Wesson, S. J. Leeks, T. L. Lim, T. Ueta, W. K. Gear

arxiv:1411.4429 v3 · 2014-11-17 · 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{MHW4BUVYBZPZ4BIY6HUAFR3CQI}

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	2026-05-18T02:27:31.911675Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

61edc0d2b80e5f9e0518f1e802c762822d11b90c7a665f7a2d027f1a03a3d335

Aliases

arxiv: 1411.4429 · arxiv_version: 1411.4429v3 · doi: 10.48550/arxiv.1411.4429 · pith_short_12: MHW4BUVYBZPZ · pith_short_16: MHW4BUVYBZPZ4BIY · pith_short_8: MHW4BUVY

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/MHW4BUVYBZPZ4BIY6HUAFR3CQI \
  | 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: 61edc0d2b80e5f9e0518f1e802c762822d11b90c7a665f7a2d027f1a03a3d335

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "84ba72d279bb05df520fe80663d4da1d9f044d0facc0a2772bbf815a1606942f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2014-11-17T10:48:51Z",
    "title_canon_sha256": "8047aa94aa84b0d4472d14e499581cb81ea89603ea075c9bd26c13ce748ac30b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.4429",
    "kind": "arxiv",
    "version": 3
  }
}