Pith Number

pith:HRDBT3KY

pith:2019:HRDBT3KYIJMMHL7BZ7U6ZUZ67W

not attested not anchored not stored refs pending

Breaking the centrifugal barrier to giant planet contraction by magnetic disc braking

Eugene Chiang, Sivan Ginzburg

arxiv:1910.11885 v1 · 2019-10-25 · 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{HRDBT3KYIJMMHL7BZ7U6ZUZ67W}

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	2026-07-05T00:22:05.805157Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c4619ed584258c3afe1cfe9ecd33efdbac7aeacb99bc1ab4a947470b76d026a

Aliases

arxiv: 1910.11885 · arxiv_version: 1910.11885v1 · doi: 10.48550/arxiv.1910.11885 · pith_short_12: HRDBT3KYIJMM · pith_short_16: HRDBT3KYIJMMHL7B · pith_short_8: HRDBT3KY

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/HRDBT3KYIJMMHL7BZ7U6ZUZ67W \
  | 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: 3c4619ed584258c3afe1cfe9ecd33efdbac7aeacb99bc1ab4a947470b76d026a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ac53806913b9d21433b7f2b5f6063c51c37cf9a0fe7d790a622f2c163998830",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2019-10-25T18:00:11Z",
    "title_canon_sha256": "8e897da95aa78ea20e5f01928ecc6e493c93dc2bbad7b9d7ce138949e2bd0e22"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1910.11885",
    "kind": "arxiv",
    "version": 1
  }
}