Pith Number

pith:4FI5DNBS

pith:2016:4FI5DNBSGG6XAZJAFLJA45YVRA

not attested not anchored not stored refs pending

Typing weak MSOL properties

Igor Walukiewicz, Sylvain Salvati

arxiv:1609.02753 v2 · 2016-09-09 · 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{4FI5DNBSGG6XAZJAFLJA45YVRA}

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	2026-05-17T23:51:21.906651Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e151d1b43231bd7065202ad20e77158836e9b5dbe8f0bfd9ad333bca5d073c03

Aliases

arxiv: 1609.02753 · arxiv_version: 1609.02753v2 · doi: 10.48550/arxiv.1609.02753 · pith_short_12: 4FI5DNBSGG6X · pith_short_16: 4FI5DNBSGG6XAZJA · pith_short_8: 4FI5DNBS

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/4FI5DNBSGG6XAZJAFLJA45YVRA \
  | 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: e151d1b43231bd7065202ad20e77158836e9b5dbe8f0bfd9ad333bca5d073c03

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "15512c52b7f2aa7a02465ad1c93ebb7778fad0f22cf4a46d80e7cf5f57bb037e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2016-09-09T11:58:43Z",
    "title_canon_sha256": "d029e5fc81f1494b49649869f7b58549ddcfbf5e5f7e8f416e186d29bf72e9b2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.02753",
    "kind": "arxiv",
    "version": 2
  }
}