Pith Number

pith:S7XA5NGC

pith:2014:S7XA5NGC7BOORO4WROBALOHJ66

not attested not anchored not stored refs pending

Dynamics of a soccer ball

Scott Crass

arxiv:1404.3170 v2 · 2014-04-11 · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{S7XA5NGC7BOORO4WROBALOHJ66}

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	2026-05-18T00:53:40.786963Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

97ee0eb4c2f85ce8bb968b8205b8e9f79ac22416ce23b4491a771e3cb705cf14

Aliases

arxiv: 1404.3170 · arxiv_version: 1404.3170v2 · doi: 10.48550/arxiv.1404.3170 · pith_short_12: S7XA5NGC7BOO · pith_short_16: S7XA5NGC7BOORO4W · pith_short_8: S7XA5NGC

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/S7XA5NGC7BOORO4WROBALOHJ66 \
  | 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: 97ee0eb4c2f85ce8bb968b8205b8e9f79ac22416ce23b4491a771e3cb705cf14

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2f0012c46f7ce1b5525def0fcd198e2a4c05b5d0dd6310cefcf7eb7a370f8a3c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2014-04-11T17:56:15Z",
    "title_canon_sha256": "16f5945924c81377131e0dfa7c9ac955da63bd7070fd4f8228c3ff5908f05329"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.3170",
    "kind": "arxiv",
    "version": 2
  }
}