Pith Number

pith:ECRLJYH7

pith:2019:ECRLJYH77QPM66APRQFJBWLQL2

not attested not anchored not stored refs pending

Ionization degree and magnetic diffusivity in the primordial star-forming clouds

Daisuke Nakauchi, Hajime Susa, Kazuyuki Omukai

arxiv:1904.08336 v1 · 2019-04-17 · 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{ECRLJYH77QPM66APRQFJBWLQL2}

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	2026-05-17T23:40:32.541591Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

20a2b4e0fffc1ecf780f8c0a90d9705e96e936c0b89f2a83de416985938064f9

Aliases

arxiv: 1904.08336 · arxiv_version: 1904.08336v1 · doi: 10.48550/arxiv.1904.08336 · pith_short_12: ECRLJYH77QPM · pith_short_16: ECRLJYH77QPM66AP · pith_short_8: ECRLJYH7

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/ECRLJYH77QPM66APRQFJBWLQL2 \
  | 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: 20a2b4e0fffc1ecf780f8c0a90d9705e96e936c0b89f2a83de416985938064f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a473e05418c8f6d7fdbf507002a81d62061d1d10dfb95d1ab04893c3470c41dc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-04-17T16:02:08Z",
    "title_canon_sha256": "b8bb3f44e2187a4d458c6f595b2b52a9ba31a1f7a55c247e76f4825df469c931"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.08336",
    "kind": "arxiv",
    "version": 1
  }
}