Pith Number

pith:PNYPIFEJ

pith:2018:PNYPIFEJ7TEXH3ACPWTQ3ZICHC

not attested not anchored not stored refs pending

Loop Patterns: Extension of Kleene Star Operator for More Expressive Pattern Matching against Arbitrary Data Structures

Satoshi Egi

arxiv:1809.03252 v1 · 2018-09-10 · cs.PL · cs.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PNYPIFEJ7TEXH3ACPWTQ3ZICHC}

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	2026-05-18T00:06:09.496908Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7b70f41489fcc973ec027da70de5023885fcbdeb3e31f4182f303bc1572a026a

Aliases

arxiv: 1809.03252 · arxiv_version: 1809.03252v1 · doi: 10.48550/arxiv.1809.03252 · pith_short_12: PNYPIFEJ7TEX · pith_short_16: PNYPIFEJ7TEXH3AC · pith_short_8: PNYPIFEJ

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/PNYPIFEJ7TEXH3ACPWTQ3ZICHC \
  | 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: 7b70f41489fcc973ec027da70de5023885fcbdeb3e31f4182f303bc1572a026a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d5ff012f8f4eafdeb0c1b5889944d62c47324e6c815b23ccbe75b2806bee3398",
    "cross_cats_sorted": [
      "cs.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2018-09-10T11:59:47Z",
    "title_canon_sha256": "47f3d7c12725071ed8e71ff3d35d5ff31f6de82002ef6043a4461504b37f8714"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.03252",
    "kind": "arxiv",
    "version": 1
  }
}