Pith Number

pith:ZR3SCSAU

pith:2010:ZR3SCSAUO6KZTQPYDOY4VCJ6GN

not attested not anchored not stored refs pending

NGC 839: Shocks in an M82-like Superwind

D. S. N. Rupke, Jeffrey A. Rich, L. J. Kewley, M. A. Dopita

arxiv:1007.3495 v2 · 2010-07-20 · astro-ph.CO · 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{ZR3SCSAUO6KZTQPYDOY4VCJ6GN}

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	2026-05-18T02:06:12.315499Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc77214814779599c1f81bb1ca893e337f438965d22c5ca17ced5deee68435b1

Aliases

arxiv: 1007.3495 · arxiv_version: 1007.3495v2 · doi: 10.48550/arxiv.1007.3495 · pith_short_12: ZR3SCSAUO6KZ · pith_short_16: ZR3SCSAUO6KZTQPY · pith_short_8: ZR3SCSAU

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/ZR3SCSAUO6KZTQPYDOY4VCJ6GN \
  | 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: cc77214814779599c1f81bb1ca893e337f438965d22c5ca17ced5deee68435b1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f3b239bf5d60bd2e05f3899141a954ecbf2e4cd75ae21f72813e687a9066236e",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-07-20T20:00:03Z",
    "title_canon_sha256": "f31bfa9bd1a9d745b0c9751dc4dabd4dd66f4b5df7c671b0651708b56373c830"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1007.3495",
    "kind": "arxiv",
    "version": 2
  }
}