Pith Number

pith:NFF24UPG

pith:2018:NFF24UPG6DLS5AHJWLCTF2QF76

not attested not anchored not stored refs pending

The VLA Nascent Disk And Multiplicity Survey of Perseus Protostars (VANDAM). IV. Free-Free Emission from Protostars: Links to Infrared Properties, Outflow Tracers, and Protostellar Disk Masses

Agata Karska, Carl Melis, Claire Chandler, Dominique Segura-Cox, Ewine F. van Dishoeck, John J. Tobin, Kaitlin M. Kratter, Laura M. P\'erez, Leslie W. Looney, {\L}ukasz Tychoniec, Michael M. Dunham, Robert J. Harris, Sarah I. Sadavoy, Zhi-Yun Li

arxiv:1806.02434 v1 · 2018-06-06 · astro-ph.SR · 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{NFF24UPG6DLS5AHJWLCTF2QF76}

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	2026-05-18T00:03:05.408398Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

694bae51e6f0d72e80e9b2c532ea05ffb6380773834dc6bb7333afdd957eb2bb

Aliases

arxiv: 1806.02434 · arxiv_version: 1806.02434v1 · doi: 10.48550/arxiv.1806.02434 · pith_short_12: NFF24UPG6DLS · pith_short_16: NFF24UPG6DLS5AHJ · pith_short_8: NFF24UPG

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/NFF24UPG6DLS5AHJWLCTF2QF76 \
  | 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: 694bae51e6f0d72e80e9b2c532ea05ffb6380773834dc6bb7333afdd957eb2bb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d9debc70b8ae6ed9e84318cafa51fae3937bf38f459c75542db6453aa9b9a074",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-06-06T21:34:11Z",
    "title_canon_sha256": "8584eec661a967f440d180c3ece3343ef3139a116285c3c680fd623062bd8d41"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.02434",
    "kind": "arxiv",
    "version": 1
  }
}