Pith Number

pith:KEVHEQV2

pith:2021:KEVHEQV2RA5PXTU36ETPNYMEXO

not attested not anchored not stored refs pending

Growth of Magnetorotational Instability in Circumstellar Disks around Class 0 Protostars

Masahiro N. Machida, Shunta Koga, Yoshihiro Kawasaki

arxiv:2104.13054 v1 · 2021-04-27 · astro-ph.SR · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KEVHEQV2RA5PXTU36ETPNYMEXO}

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	2026-07-05T02:39:19.816309Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

512a7242ba883afbce9bf126f6e184bbb9da6bf6a51e8fba2b627348f9365c4f

Aliases

arxiv: 2104.13054 · arxiv_version: 2104.13054v1 · doi: 10.48550/arxiv.2104.13054 · pith_short_12: KEVHEQV2RA5P · pith_short_16: KEVHEQV2RA5PXTU3 · pith_short_8: KEVHEQV2

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/KEVHEQV2RA5PXTU36ETPNYMEXO \
  | 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: 512a7242ba883afbce9bf126f6e184bbb9da6bf6a51e8fba2b627348f9365c4f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c4812ae3ec7cadb3dd468601a118a91e4cb96cdc7ed8541cd5ef6d54f3d749f9",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2021-04-27T09:02:52Z",
    "title_canon_sha256": "a79ef21526d960102916d88fa7650d0a3175f01e80b0742563ddfc77e8df369e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.13054",
    "kind": "arxiv",
    "version": 1
  }
}