Pith Number

pith:CU6JV5XR

pith:2017:CU6JV5XRXSUHPMSACJ3VB5CF4W

not attested not anchored not stored refs pending

Efficient Pattern Matching in Python

Henrik Barthels, Manuel Krebber, Paolo Bientinesi

arxiv:1710.00077 v1 · 2017-09-29 · cs.PL · cs.PF

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CU6JV5XRXSUHPMSACJ3VB5CF4W}

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	2026-05-18T00:33:34.429986Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

153c9af6f1bca877b240127750f445e58eba30b72b2b8aaffd13ccbf72ff3d01

Aliases

arxiv: 1710.00077 · arxiv_version: 1710.00077v1 · doi: 10.48550/arxiv.1710.00077 · pith_short_12: CU6JV5XRXSUH · pith_short_16: CU6JV5XRXSUHPMSA · pith_short_8: CU6JV5XR

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/CU6JV5XRXSUHPMSACJ3VB5CF4W \
  | 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: 153c9af6f1bca877b240127750f445e58eba30b72b2b8aaffd13ccbf72ff3d01

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6eab891a1e9e43085b8de05308504e0cf07b3d84849591f39467e8bbc38924ac",
    "cross_cats_sorted": [
      "cs.PF"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2017-09-29T20:14:47Z",
    "title_canon_sha256": "42df4e08b486d476eb99cad1d8be23c585de1dacaaa8165f11654012140efd2e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.00077",
    "kind": "arxiv",
    "version": 1
  }
}