Pith Number

pith:DAR5XJYI

pith:2009:DAR5XJYI4O6KFLYZ2J3XGROY2C

not attested not anchored not stored refs pending

Undecidability of performance equivalence of Petri nets

Marcin Poturalski, Slawomir Lasota

arxiv:0910.5819 v2 · 2009-10-30 · cs.CC · 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{DAR5XJYI4O6KFLYZ2J3XGROY2C}

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	2026-05-18T01:37:51.616796Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1823dba708e3bca2af19d2777345d8d0b8a5a487c58ca4f664254bc2664e41b3

Aliases

arxiv: 0910.5819 · arxiv_version: 0910.5819v2 · doi: 10.48550/arxiv.0910.5819 · pith_short_12: DAR5XJYI4O6K · pith_short_16: DAR5XJYI4O6KFLYZ · pith_short_8: DAR5XJYI

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/DAR5XJYI4O6KFLYZ2J3XGROY2C \
  | 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: 1823dba708e3bca2af19d2777345d8d0b8a5a487c58ca4f664254bc2664e41b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "407ad342a37374d5846ab36a7c2d57f6bb71157c12cec6759b079c43ad521094",
    "cross_cats_sorted": [
      "cs.PF"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2009-10-30T09:25:43Z",
    "title_canon_sha256": "fbbc6a8a59beb0c4b804994919ba6b6e71115f5525b25f41e06a8dd2b43a46e6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.5819",
    "kind": "arxiv",
    "version": 2
  }
}