Pith Number

pith:5NE7R5AA

pith:2019:5NE7R5AATYWHBONTCBUNPHKAXO

not attested not anchored not stored refs pending

On discrete idempotent paths

Luigi Santocanale (LIS)

arxiv:1906.05590 v1 · 2019-06-13 · math.LO · cs.LO · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5NE7R5AATYWHBONTCBUNPHKAXO}

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	2026-05-17T23:43:24.856871Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eb49f8f4009e2c70b9b31068d79d40bb970b43ee8bb4996fd1a4d409585830da

Aliases

arxiv: 1906.05590 · arxiv_version: 1906.05590v1 · doi: 10.48550/arxiv.1906.05590 · pith_short_12: 5NE7R5AATYWH · pith_short_16: 5NE7R5AATYWHBONT · pith_short_8: 5NE7R5AA

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/5NE7R5AATYWHBONTCBUNPHKAXO \
  | 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: eb49f8f4009e2c70b9b31068d79d40bb970b43ee8bb4996fd1a4d409585830da

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e32e6cb21cd71eaa17e75f9628f7a19e6237342daa53242076adf199cb6a6c6c",
    "cross_cats_sorted": [
      "cs.LO",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2019-06-13T10:33:05Z",
    "title_canon_sha256": "7b906e076e339577ae362c337719d8fdfae6a3b79258b465249778de18d8cea9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.05590",
    "kind": "arxiv",
    "version": 1
  }
}