Pith Number

pith:7CXRR54K

pith:2013:7CXRR54KRWFL44U3OSLLLW7Q2Z

not attested not anchored not stored refs pending

A Herschel study of NGC 650

B.M. Swinyard, C. Waelkens, E.T. Polehampton, G.C. Van de Steene, G. Olofsson, H.L. Gomez, H. Van Winckel, K.M. Exter, M.A.T. Groenewegen, M.J. Barlow, 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:1308.2477 v1 · 2013-08-12 · 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{7CXRR54KRWFL44U3OSLLLW7Q2Z}

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	2026-05-18T01:48:16.436029Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8af18f78a8d8abe729b7496b5dbf0d661ad5526e3a07f8f62f075c3f4433526

Aliases

arxiv: 1308.2477 · arxiv_version: 1308.2477v1 · doi: 10.48550/arxiv.1308.2477 · pith_short_12: 7CXRR54KRWFL · pith_short_16: 7CXRR54KRWFL44U3 · pith_short_8: 7CXRR54K

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/7CXRR54KRWFL44U3OSLLLW7Q2Z \
  | 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: f8af18f78a8d8abe729b7496b5dbf0d661ad5526e3a07f8f62f075c3f4433526

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eb4efd95251c0dc484699377515530af6d0ca350b433115d734888e649a3033d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-08-12T07:25:04Z",
    "title_canon_sha256": "17a6f1ddbce2e029ede8b71d45e5feff4b56529e42f82ef76b00d9f45193ac20"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.2477",
    "kind": "arxiv",
    "version": 1
  }
}