Pith Number

pith:QQFA4AEZ

pith:2011:QQFA4AEZZAJBJBXF5KX2M3EY6Y

not attested not anchored not stored refs pending

Computation for Supremal Simulation-Based Controllable and Strong Observable Subautomata

Fuchun Liu, Hai Lin, Yajuan Sun

arxiv:1101.3500 v1 · 2011-01-18 · cs.SY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QQFA4AEZZAJBJBXF5KX2M3EY6Y}

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	2026-05-18T00:56:58.054667Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

840a0e0099c8121486e5eaafa66c98f634844f8423ca61e3826fe4ed23a6ddaf

Aliases

arxiv: 1101.3500 · arxiv_version: 1101.3500v1 · doi: 10.48550/arxiv.1101.3500 · pith_short_12: QQFA4AEZZAJB · pith_short_16: QQFA4AEZZAJBJBXF · pith_short_8: QQFA4AEZ

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/QQFA4AEZZAJBJBXF5KX2M3EY6Y \
  | 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: 840a0e0099c8121486e5eaafa66c98f634844f8423ca61e3826fe4ed23a6ddaf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "678602d9526bdae54be4e2c8068a5ba1ee8fb264f437fbf438f2c7bfe1931241",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SY",
    "submitted_at": "2011-01-18T17:03:55Z",
    "title_canon_sha256": "ca451c3f1f40b0f099108291e78ba6db9117deecd3ed9d242cab395f5f2533a0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.3500",
    "kind": "arxiv",
    "version": 1
  }
}