Pith Number

pith:B4AZRT6Y

pith:2018:B4AZRT6YRHAUNIDSRTUUY6GI4Y

not attested not anchored not stored refs pending

Gravitational stability and fragmentation condition for discs around accreting supermassive stars

Kazuyuki Omukai, Kazuyuki Sugimura, Ryoki Matsukoba, Sanemichi Z. Takahashi

arxiv:1901.00007 v1 · 2018-12-31 · 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{B4AZRT6YRHAUNIDSRTUUY6GI4Y}

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	2026-05-17T23:56:44.388238Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0f0198cfd889c146a0728ce94c78c8e604b97009256d18490a536583b958a757

Aliases

arxiv: 1901.00007 · arxiv_version: 1901.00007v1 · doi: 10.48550/arxiv.1901.00007 · pith_short_12: B4AZRT6YRHAU · pith_short_16: B4AZRT6YRHAUNIDS · pith_short_8: B4AZRT6Y

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/B4AZRT6YRHAUNIDSRTUUY6GI4Y \
  | 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: 0f0198cfd889c146a0728ce94c78c8e604b97009256d18490a536583b958a757

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8f72992d1fec6b4963969d3e12cb5189db3d0dd9456310e5aef5e54d69fdf92c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-12-31T19:00:01Z",
    "title_canon_sha256": "e0644b32e78416df8c1ca7cb218997ee5c4e0d5fa4de87bcc6de814c75b61954"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.00007",
    "kind": "arxiv",
    "version": 1
  }
}