Pith Number

pith:NHPRC7PC

pith:2018:NHPRC7PCOMCC737A7I7WTYH3NK

not attested not anchored not stored refs pending

Science with an ngVLA: Understanding Massive Star Formation through Maser Imaging

Alberto Sanna, Anna Bartkiewicz, Claudia J. Cyganowski, Crystal L. Brogan, Gordon C. MacLeod, James O. Chibueze, Jos\'e-Maria Torrelles, Todd R. Hunter, Tomoya Hirota

arxiv:1806.06981 v2 · 2018-06-18 · astro-ph.GA · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NHPRC7PCOMCC737A7I7WTYH3NK}

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	2026-05-18T00:03:16.203739Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

69df117de273042fefe0fa3f69e0fb6abb06d0ddbfa567688747a2349add6b01

Aliases

arxiv: 1806.06981 · arxiv_version: 1806.06981v2 · doi: 10.48550/arxiv.1806.06981 · pith_short_12: NHPRC7PCOMCC · pith_short_16: NHPRC7PCOMCC737A · pith_short_8: NHPRC7PC

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/NHPRC7PCOMCC737A7I7WTYH3NK \
  | 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: 69df117de273042fefe0fa3f69e0fb6abb06d0ddbfa567688747a2349add6b01

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c1ba5ec3868a05ba33231c7e12728a0dad671ab6e112629bca32eaba2297c17c",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-06-18T23:11:34Z",
    "title_canon_sha256": "10a041852a4352e9258f8f70d93e958171a378d6bb4f254704c7f9fda52ac3a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.06981",
    "kind": "arxiv",
    "version": 2
  }
}