Pith Number

pith:EFCS7QLY

pith:2018:EFCS7QLYMXWHULY7OBVPC5O5BU

not attested not anchored not stored refs pending

Testing Simon's congruence

Lukas Fleischer, Manfred Kufleitner

arxiv:1804.10459 v1 · 2018-04-27 · cs.FL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EFCS7QLYMXWHULY7OBVPC5O5BU}

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	2026-05-18T00:17:20.688986Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21452fc17865ec7a2f1f706af175dd0d1ce0588f30af866db1a3702d2033a1b5

Aliases

arxiv: 1804.10459 · arxiv_version: 1804.10459v1 · doi: 10.48550/arxiv.1804.10459 · pith_short_12: EFCS7QLYMXWH · pith_short_16: EFCS7QLYMXWHULY7 · pith_short_8: EFCS7QLY

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/EFCS7QLYMXWHULY7OBVPC5O5BU \
  | 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: 21452fc17865ec7a2f1f706af175dd0d1ce0588f30af866db1a3702d2033a1b5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "37a056094ef5d2750f73ee77e7fb8439d92d5d5b12b31f433091c378acf46255",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2018-04-27T12:06:42Z",
    "title_canon_sha256": "cd8f751b66f49cbb38545dc84c72258b8be16579801f45278e02125e3c788fb0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.10459",
    "kind": "arxiv",
    "version": 1
  }
}