Pith Number

pith:PQ6AXIJ5

pith:2015:PQ6AXIJ5PMVUWH6FOKOVQ2YHY4

not attested not anchored not stored refs pending

Calculating the Potato Radius of Asteroids using the Height of Mt. Everest

M. E. Caplan

arxiv:1511.04297 v1 · 2015-11-07 · physics.ed-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PQ6AXIJ5PMVUWH6FOKOVQ2YHY4}

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	2026-05-18T01:26:59.207822Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c3c0ba13d7b2b4b1fc5729d586b07c7239fcb0242228c5f887d6ca9b25407f1

Aliases

arxiv: 1511.04297 · arxiv_version: 1511.04297v1 · doi: 10.48550/arxiv.1511.04297 · pith_short_12: PQ6AXIJ5PMVU · pith_short_16: PQ6AXIJ5PMVUWH6F · pith_short_8: PQ6AXIJ5

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/PQ6AXIJ5PMVUWH6FOKOVQ2YHY4 \
  | 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: 7c3c0ba13d7b2b4b1fc5729d586b07c7239fcb0242228c5f887d6ca9b25407f1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "81762f48bde81980358e2a12f00358af9eb8d7f5db2e7ba06491c6acad6f5b10",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2015-11-07T15:22:34Z",
    "title_canon_sha256": "90cad08a8fafaf76a94f613d9c5346e2dcee5ef9067d04cc5ddc511243769078"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.04297",
    "kind": "arxiv",
    "version": 1
  }
}