Pith Number

pith:7NASHQC5

pith:2017:7NASHQC5PN3C2U5I2L23Z5SYTZ

not attested not anchored not stored refs pending

Imperfections, impacts, and the singularity of Euler's disk

P\'eter L. V\'arkonyi, Tam\'as Baranyai

arxiv:1706.10205 v1 · 2017-06-30 · physics.class-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{7NASHQC5PN3C2U5I2L23Z5SYTZ}

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	2026-05-17T23:53:52.238340Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fb4123c05d7b762d53a8d2f5bcf6589e4600b7aafe08099c459e720487abe1e9

Aliases

arxiv: 1706.10205 · arxiv_version: 1706.10205v1 · doi: 10.48550/arxiv.1706.10205 · pith_short_12: 7NASHQC5PN3C · pith_short_16: 7NASHQC5PN3C2U5I · pith_short_8: 7NASHQC5

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/7NASHQC5PN3C2U5I2L23Z5SYTZ \
  | 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: fb4123c05d7b762d53a8d2f5bcf6589e4600b7aafe08099c459e720487abe1e9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cce44c3e22743f7c8f6ad4fd895694bd9cb879219e359f5ec3bd1014a2dee4bb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2017-06-30T13:59:52Z",
    "title_canon_sha256": "1126607f2b759b7cd4d3825be5cc4901235797b679770e532693e7948f273bb3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.10205",
    "kind": "arxiv",
    "version": 1
  }
}