Pith Number

pith:UHEJTDJ7

pith:2018:UHEJTDJ7UCWBYBQ76XC5VVEZ2D

not attested not anchored not stored refs pending

Ionization Profiles of Galactic HII Regions

Bin Liu, D. Anish Roshi, Ed Churchwell, L. D. Anderson, Matteo Luisi

arxiv:1812.01539 v1 · 2018-12-04 · 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{UHEJTDJ7UCWBYBQ76XC5VVEZ2D}

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	2026-05-17T23:52:39.380461Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1c8998d3fa0ac1c061ff5c5dad499d0ce34c8caeb4151624db1a1f2743b9a59

Aliases

arxiv: 1812.01539 · arxiv_version: 1812.01539v1 · doi: 10.48550/arxiv.1812.01539 · pith_short_12: UHEJTDJ7UCWB · pith_short_16: UHEJTDJ7UCWBYBQ7 · pith_short_8: UHEJTDJ7

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/UHEJTDJ7UCWBYBQ76XC5VVEZ2D \
  | 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: a1c8998d3fa0ac1c061ff5c5dad499d0ce34c8caeb4151624db1a1f2743b9a59

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3c83e3a9909e76b761ed0bfc9f14f83dbb04299aec8c2ebd47901f31e9a1f71a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-12-04T17:17:12Z",
    "title_canon_sha256": "de66fc41f3de16ddb66b5ccd3f3a9853f1c1b07a34d78364803eab09bc8f8ce9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.01539",
    "kind": "arxiv",
    "version": 1
  }
}