Pith Number

pith:N7TDYYQZ

pith:2022:N7TDYYQZ2PNCWO63E3ZMHQAQ4S

not attested not anchored not stored refs pending

Efficient Enumeration Algorithms for Annotated Grammars

Antoine Amarilli, Cristian Riveros, Louis Jachiet, Mart\'in Mu\~noz

arxiv:2201.00549 v2 · 2022-01-03 · cs.FL · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{N7TDYYQZ2PNCWO63E3ZMHQAQ4S}

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	2026-07-05T05:47:01.498615Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6fe63c6219d3da2b3bdb26f2c3c010e4bc71898e91943a77006cad0c65039146

Aliases

arxiv: 2201.00549 · arxiv_version: 2201.00549v2 · doi: 10.48550/arxiv.2201.00549 · pith_short_12: N7TDYYQZ2PNC · pith_short_16: N7TDYYQZ2PNCWO63 · pith_short_8: N7TDYYQZ

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/N7TDYYQZ2PNCWO63E3ZMHQAQ4S \
  | 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: 6fe63c6219d3da2b3bdb26f2c3c010e4bc71898e91943a77006cad0c65039146

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7c3f0cc370f5f54a7a49ef7776e29f758ff5c5c047317be31a24ffe3f5904e88",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2022-01-03T09:41:09Z",
    "title_canon_sha256": "259e6ec4d77b1e16378b48eabc24afd6247360516cfd01586e351c1d2e8fb9f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2201.00549",
    "kind": "arxiv",
    "version": 2
  }
}