Pith Number

pith:WX3EX4CX

pith:2019:WX3EX4CXJGK6DX7XLRTTUCKTPQ

not attested not anchored not stored refs pending

Variability in the Assembly of Protostellar Systems

Agata Karska, Dan M. Watson, Doug Johnstone, Hector Arce, Ian Stephens, Jacob White, Jennifer Hatchell, Jens Kauffmann, Joel D. Green, John Tobin, Klaus Pontoppidan, Mike Dunham, Neal J. Evans, Robert A. Gutermuth, Sarah Sadavoy, Stella Offner, Tom Megeath, Will Fischer, Yao-Lun Yang, Zhi-Yun Li

arxiv:1903.05242 v1 · 2019-03-12 · astro-ph.SR · astro-ph.GA · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WX3EX4CXJGK6DX7XLRTTUCKTPQ}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-17T23:51:24.972559Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b5f64bf0574995e1dff75c673a09537c2dbc5c42b56fa765dbdd5b093ba11520

Aliases

arxiv: 1903.05242 · arxiv_version: 1903.05242v1 · doi: 10.48550/arxiv.1903.05242 · pith_short_12: WX3EX4CXJGK6 · pith_short_16: WX3EX4CXJGK6DX7X · pith_short_8: WX3EX4CX

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/WX3EX4CXJGK6DX7XLRTTUCKTPQ \
  | 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: b5f64bf0574995e1dff75c673a09537c2dbc5c42b56fa765dbdd5b093ba11520

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9b361fdec6cdbbc721ab47a4809e9496b7b1191c39e5fde91b01b10caba21451",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-03-12T22:31:46Z",
    "title_canon_sha256": "bd2c1b12a4e977adae329960acb9176641d479d1d04ad3a0201e374d6ba56a69"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.05242",
    "kind": "arxiv",
    "version": 1
  }
}