Pith Number

pith:UE4ZW5P5

pith:2019:UE4ZW5P5IQRZ3UHB7YMJSGIN5M

not attested not anchored not stored refs pending

Deciding Equivalence of Separated Non-Nested Attribute Systems in Polynomial Time

Helmut Seidl, Raphaela Palenta, Sebastian Maneth

arxiv:1902.03858 v1 · 2019-02-11 · 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{UE4ZW5P5IQRZ3UHB7YMJSGIN5M}

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	2026-05-17T23:54:17.680747Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1399b75fd44239dd0e1fe1899190deb187ab91b8de864d67709f532d47257a5

Aliases

arxiv: 1902.03858 · arxiv_version: 1902.03858v1 · doi: 10.48550/arxiv.1902.03858 · pith_short_12: UE4ZW5P5IQRZ · pith_short_16: UE4ZW5P5IQRZ3UHB · pith_short_8: UE4ZW5P5

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/UE4ZW5P5IQRZ3UHB7YMJSGIN5M \
  | 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: a1399b75fd44239dd0e1fe1899190deb187ab91b8de864d67709f532d47257a5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5205f0604412b244bf23111e6d363420449b95f42c11a9baa30594b2641d6ddb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2019-02-11T13:18:29Z",
    "title_canon_sha256": "6cdb313cfc5bba1f479221e5c7ec80d6675da58f7315c080ad4a484658964173"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.03858",
    "kind": "arxiv",
    "version": 1
  }
}