Pith Number

pith:Z7ISBFCM

pith:2022:Z7ISBFCMUE3PKBPWD4YQ4XN7PB

not attested not anchored not stored refs pending

Dust coagulation and fragmentation in a collapsing cloud core and their influence on non-ideal magnetohydrodynamic effects

Masahiro N. Machida, Shunta Koga, Yoshihiro Kawasaki

arxiv:2207.03059 v1 · 2022-07-07 · astro-ph.SR · astro-ph.EP · 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{Z7ISBFCMUE3PKBPWD4YQ4XN7PB}

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	2026-07-05T04:41:46.616325Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cfd120944ca136f505f61f310e5dbf7841e473fb6815d33251d7bd724d3ec2ba

Aliases

arxiv: 2207.03059 · arxiv_version: 2207.03059v1 · doi: 10.48550/arxiv.2207.03059 · pith_short_12: Z7ISBFCMUE3P · pith_short_16: Z7ISBFCMUE3PKBPW · pith_short_8: Z7ISBFCM

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/Z7ISBFCMUE3PKBPWD4YQ4XN7PB \
  | 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: cfd120944ca136f505f61f310e5dbf7841e473fb6815d33251d7bd724d3ec2ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ad9560fafac27b177de34199bc30f9f1469479d0353682ada7c2e2c53eac9698",
    "cross_cats_sorted": [
      "astro-ph.EP",
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2022-07-07T02:55:26Z",
    "title_canon_sha256": "8514eb21be7f3e825f5e89157e34a617ef4cdb1ad1228f1afc45ebf2b7167973"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2207.03059",
    "kind": "arxiv",
    "version": 1
  }
}