Pith Number

pith:5PHGSWU7

pith:2018:5PHGSWU7AFJ2G5ZMWHMOBWTFMG

not attested not anchored not stored refs pending

Storm in a Teacup: X-ray view of an obscured quasar and superbubble

A. C. Edge, A. Del Moro, A. Thomson, C. M. Harrison, D. M. Alexander, G. B. Lansbury, J. R. Mullaney, M. E. Jarvis

arxiv:1803.00009 v2 · 2018-02-28 · astro-ph.GA · astro-ph.HE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5PHGSWU7AFJ2G5ZMWHMOBWTFMG}

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	2026-05-18T00:19:20.577817Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ebce695a9f0153a3772cb1d8e0da656192fca02151524089968437a1b19b1a21

Aliases

arxiv: 1803.00009 · arxiv_version: 1803.00009v2 · doi: 10.48550/arxiv.1803.00009 · pith_short_12: 5PHGSWU7AFJ2 · pith_short_16: 5PHGSWU7AFJ2G5ZM · pith_short_8: 5PHGSWU7

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/5PHGSWU7AFJ2G5ZMWHMOBWTFMG \
  | 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: ebce695a9f0153a3772cb1d8e0da656192fca02151524089968437a1b19b1a21

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd1f436a38d0098dc1922b5af9c89f432c1a2de02adc9b38636af97d8f2567ac",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-02-28T19:00:00Z",
    "title_canon_sha256": "330de32b3303c9dbe615da0963abccd114d2eda16f5549ba6832c9fbcdec93c5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.00009",
    "kind": "arxiv",
    "version": 2
  }
}