Pith Number

pith:PBYNTQOG

pith:2016:PBYNTQOGTY2GJIMTKBDDI5P4XW

not attested not anchored not stored refs pending

The spherical Brazil Nut Effect and its significance to asteroids

Alan P. Jackson, Erik Asphaug, Ronald-Louis Ballouz, Viranga Perera

arxiv:1608.05191 v1 · 2016-08-18 · 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{PBYNTQOGTY2GJIMTKBDDI5P4XW}

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	2026-05-18T01:08:31.662273Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7870d9c1c69e3464a19350463475fcbdb0c0044c1bf83cc58ae4e25ae41d69e0

Aliases

arxiv: 1608.05191 · arxiv_version: 1608.05191v1 · doi: 10.48550/arxiv.1608.05191 · pith_short_12: PBYNTQOGTY2G · pith_short_16: PBYNTQOGTY2GJIMT · pith_short_8: PBYNTQOG

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/PBYNTQOGTY2GJIMTKBDDI5P4XW \
  | 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: 7870d9c1c69e3464a19350463475fcbdb0c0044c1bf83cc58ae4e25ae41d69e0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "16f73b944029ac40b12a384422c30bbb595dc629e83660449bae8ab7f39230b9",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2016-08-18T06:41:14Z",
    "title_canon_sha256": "c8eb81df4d95d698f00ec7116af4fb3348454cff02d29c6d6978cddf27af1c02"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1608.05191",
    "kind": "arxiv",
    "version": 1
  }
}