Pith Number

pith:2ZQ36SGO

pith:2009:2ZQ36SGOAPXEVX7HIXKFZFHRTA

not attested not anchored not stored refs pending

Modeling of Protostellar Clouds and their Observational Properties

A.G. Zhilkin, S.N. Zamozdra, Ya.N. Pavlyuchenkov

arxiv:0906.4674 v1 · 2009-06-25 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2ZQ36SGOAPXEVX7HIXKFZFHRTA}

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	2026-05-18T02:13:12.760682Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d661bf48ce03ee4adfe745d45c94f19802b6ffd7b03c9dd20045408515c88c97

Aliases

arxiv: 0906.4674 · arxiv_version: 0906.4674v1 · doi: 10.48550/arxiv.0906.4674 · pith_short_12: 2ZQ36SGOAPXE · pith_short_16: 2ZQ36SGOAPXEVX7H · pith_short_8: 2ZQ36SGO

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/2ZQ36SGOAPXEVX7HIXKFZFHRTA \
  | 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: d661bf48ce03ee4adfe745d45c94f19802b6ffd7b03c9dd20045408515c88c97

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1be474d82c00824f1b93a9c4e54a48d225c443ab73112fcf15025aa10281a57f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2009-06-25T12:32:41Z",
    "title_canon_sha256": "0d91352bd5bb9b72d596f6093d06938eaf5eb8f4c082fb16a8ec5ceaf53d239c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.4674",
    "kind": "arxiv",
    "version": 1
  }
}