Pith Number

pith:SSZIYHCT

pith:2010:SSZIYHCT2FUPUMSIPBRCDYXK66

not attested not anchored not stored refs pending

Ultra- and Hyper-compact HII regions at 20 GHz

(2) University of California, (3) The Australia Telescope National Facility), Anne J. Green (1), Berkeley, Martin Cohen (2), Robin Wark (3), Ronald D. Ekers (3), Tara Murphy (1), Vanessa Moss (1) ((1) The University of Sydney

arxiv:1002.4627 v1 · 2010-02-24 · 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{SSZIYHCT2FUPUMSIPBRCDYXK66}

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	2026-05-18T02:08:57.109066Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

94b28c1c53d168fa3248786221e2eaf7a45e89f895e83e5391b772be19acf09c

Aliases

arxiv: 1002.4627 · arxiv_version: 1002.4627v1 · doi: 10.48550/arxiv.1002.4627 · pith_short_12: SSZIYHCT2FUP · pith_short_16: SSZIYHCT2FUPUMSI · pith_short_8: SSZIYHCT

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/SSZIYHCT2FUPUMSIPBRCDYXK66 \
  | 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: 94b28c1c53d168fa3248786221e2eaf7a45e89f895e83e5391b772be19acf09c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "df071d6126d39cdfd25d109aa02838f2ef2897185587740b21d793ccc52f62cc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2010-02-24T21:04:48Z",
    "title_canon_sha256": "70b6d3a0a8aa88ef997d9bd2cadefe49964fda9a626304cc84da2cfc71c6f8fd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1002.4627",
    "kind": "arxiv",
    "version": 1
  }
}