Pith Number

pith:JCGQKGZB

pith:2016:JCGQKGZB6ZIJZ3HH52OAAC476F

not attested not anchored not stored refs pending

A revised condition for self-gravitational fragmentation of protoplanetary disks

Sanemichi Z. Takahashi, Shu-ichiro Inutsuka, Yusuke Tsukamoto

arxiv:1603.01402 v2 · 2016-03-04 · 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{JCGQKGZB6ZIJZ3HH52OAAC476F}

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	2026-05-18T01:18:03.106772Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

488d051b21f6509cece7ee9c000b9ff14f4e2197f06effe59007ca5c8c3dc8a6

Aliases

arxiv: 1603.01402 · arxiv_version: 1603.01402v2 · doi: 10.48550/arxiv.1603.01402 · pith_short_12: JCGQKGZB6ZIJ · pith_short_16: JCGQKGZB6ZIJZ3HH · pith_short_8: JCGQKGZB

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/JCGQKGZB6ZIJZ3HH52OAAC476F \
  | 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: 488d051b21f6509cece7ee9c000b9ff14f4e2197f06effe59007ca5c8c3dc8a6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a008981894017a723d4846534c7fcc44dd03d09d738998243a876d06f54e9d94",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2016-03-04T10:01:00Z",
    "title_canon_sha256": "4e5415323bf21f3ef8f747de4abc13e36e82246719a47e459dbe8ae788e7a7df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.01402",
    "kind": "arxiv",
    "version": 2
  }
}