Pith Number

pith:XOZUHBTM

pith:2015:XOZUHBTM7MXAZKGNC3NI4VTDGI

not attested not anchored not stored refs pending

Completeness-via-canonicity for coalgebraic logics

Fredrik Dahlqvist

arxiv:1510.09095 v1 · 2015-10-30 · cs.LO · math.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{XOZUHBTM7MXAZKGNC3NI4VTDGI}

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	2026-05-18T01:28:23.110056Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bbb343866cfb2e0ca8cd16da8e566332292b04722f353b5eb3e5371b6c672731

Aliases

arxiv: 1510.09095 · arxiv_version: 1510.09095v1 · doi: 10.48550/arxiv.1510.09095 · pith_short_12: XOZUHBTM7MXA · pith_short_16: XOZUHBTM7MXAZKGN · pith_short_8: XOZUHBTM

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/XOZUHBTM7MXAZKGNC3NI4VTDGI \
  | 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: bbb343866cfb2e0ca8cd16da8e566332292b04722f353b5eb3e5371b6c672731

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4a424be7746cfa0e9c59dfbc00cc298ac24f3c5788cec1c80c7a79956fe00bec",
    "cross_cats_sorted": [
      "math.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2015-10-30T14:08:53Z",
    "title_canon_sha256": "6e0e9d5e108e7104254c7ce4cd8e6fa29f7c2fc29ca0819c33bc881eba098d8e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.09095",
    "kind": "arxiv",
    "version": 1
  }
}