Pith Number

pith:PG6KWN6R

pith:2011:PG6KWN6RSURFPKOESIQADB24KX

not attested not anchored not stored refs pending

A Reservoir of Ionized Gas in the Galactic Halo to Sustain Star Formation in the Milky Way

J. Christopher Howk, Nicolas Lehner

arxiv:1111.3981 v1 · 2011-11-16 · astro-ph.GA · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PG6KWN6RSURFPKOESIQADB24KX}

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	2026-05-18T01:59:31.935588Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

79bcab37d1952257a9c4922001875c55e4f5938ff5e58b6d5123e078df46c63f

Aliases

arxiv: 1111.3981 · arxiv_version: 1111.3981v1 · doi: 10.48550/arxiv.1111.3981 · pith_short_12: PG6KWN6RSURF · pith_short_16: PG6KWN6RSURFPKOE · pith_short_8: PG6KWN6R

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/PG6KWN6RSURFPKOESIQADB24KX \
  | 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: 79bcab37d1952257a9c4922001875c55e4f5938ff5e58b6d5123e078df46c63f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a4e7f7047c77f8a46eaa63cb3bca779e8e61a417ec24b37bf14520e93765f749",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2011-11-16T22:06:17Z",
    "title_canon_sha256": "a0f5688d9fdb94c8e69b502b23e4c4cc4406ff93491b95b0ff0faffca0c182ab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.3981",
    "kind": "arxiv",
    "version": 1
  }
}