Pith Number

pith:LNCSFKU5

pith:2017:LNCSFKU5KJ2PVEZ5NYJ4FNQGN4

not attested not anchored not stored refs pending

Active Learning of Input Grammars

Alexander Kampmann, Andreas Zeller, Matthias H\"oschele

arxiv:1708.08731 v1 · 2017-08-29 · cs.PL · 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{LNCSFKU5KJ2PVEZ5NYJ4FNQGN4}

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	2026-05-18T00:36:25.883541Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5b4522aa9d5274fa933d6e13c2b6066f03330e50cfb53675c436f1fd7d00988c

Aliases

arxiv: 1708.08731 · arxiv_version: 1708.08731v1 · doi: 10.48550/arxiv.1708.08731 · pith_short_12: LNCSFKU5KJ2P · pith_short_16: LNCSFKU5KJ2PVEZ5 · pith_short_8: LNCSFKU5

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/LNCSFKU5KJ2PVEZ5NYJ4FNQGN4 \
  | 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: 5b4522aa9d5274fa933d6e13c2b6066f03330e50cfb53675c436f1fd7d00988c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1f71ad9aee4577a0d336ce40cba093f52a31b9ebea75000ccc68360a92a41bdb",
    "cross_cats_sorted": [
      "cs.FL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2017-08-29T13:02:44Z",
    "title_canon_sha256": "efe6ab6434eb4ab5cb089432f88cffa681f46e901f6fc8da2c3f993a3643cbe3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.08731",
    "kind": "arxiv",
    "version": 1
  }
}