Pith Number

pith:K2C2WREE

pith:2019:K2C2WREEEEMMVZYMTD65FYD7QE

not attested not anchored not stored refs pending

The Role of Magnetic Fields in Setting the Star Formation Rate and the Initial Mass Function

Christoph Federrath, Mark R. Krumholz

arxiv:1902.02557 v1 · 2019-02-07 · 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{K2C2WREEEEMMVZYMTD65FYD7QE}

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	2026-05-17T23:54:32.873825Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5685ab44842118cae70c98fdd2e07f810061bf2c05a1591bf626eca54a1f527e

Aliases

arxiv: 1902.02557 · arxiv_version: 1902.02557v1 · doi: 10.48550/arxiv.1902.02557 · pith_short_12: K2C2WREEEEMM · pith_short_16: K2C2WREEEEMMVZYM · pith_short_8: K2C2WREE

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/K2C2WREEEEMMVZYMTD65FYD7QE \
  | 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: 5685ab44842118cae70c98fdd2e07f810061bf2c05a1591bf626eca54a1f527e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a8c894503cc932a86b42da1e970f29d6609b9c994a36085ef5790a206aaadb87",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-02-07T10:32:13Z",
    "title_canon_sha256": "19a3683ff34ff2d5a88c44aa03103050545f2b445352384999c7cef332fdae59"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.02557",
    "kind": "arxiv",
    "version": 1
  }
}