Pith Number

pith:VK6MWHPM

pith:2015:VK6MWHPMRXMSXPSFDVBHCV2PLW

not attested not anchored not stored refs pending

Demystifying Reachability in Vector Addition Systems

J\'er\^ome Leroux, Sylvain Schmitz

arxiv:1503.00745 v2 · 2015-03-02 · cs.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VK6MWHPMRXMSXPSFDVBHCV2PLW}

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	2026-05-18T01:35:38.150686Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aabccb1dec8dd92bbe451d4271574f5d8d4fc6c03403f23045309a2bbef40503

Aliases

arxiv: 1503.00745 · arxiv_version: 1503.00745v2 · doi: 10.48550/arxiv.1503.00745 · pith_short_12: VK6MWHPMRXMS · pith_short_16: VK6MWHPMRXMSXPSF · pith_short_8: VK6MWHPM

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/VK6MWHPMRXMSXPSFDVBHCV2PLW \
  | 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: aabccb1dec8dd92bbe451d4271574f5d8d4fc6c03403f23045309a2bbef40503

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0bd0b76c8bdede7d0faa7ba4435422a5624c92119485c2147603b1f3e6ed2151",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2015-03-02T21:12:14Z",
    "title_canon_sha256": "23d120d86d2a95df4f5a54603a8701085f39caff2167ba424c3a66d2e6b33c28"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.00745",
    "kind": "arxiv",
    "version": 2
  }
}