Pith Number

pith:XZAGJE7Y

pith:2018:XZAGJE7YY6CLDV6GTH4ZT4Y5LN

not attested not anchored not stored refs pending

Galois connections and tense operators on q-effect algebras

Ivan Chajda, Jan Paseka

arxiv:1809.03773 v1 · 2018-09-11 · 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{XZAGJE7YY6CLDV6GTH4ZT4Y5LN}

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	2026-05-18T00:05:59.857399Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

be406493f8c784b1d7c699f999f31d5b532d9ca9e4a0c0fada93c0dcd7dcee98

Aliases

arxiv: 1809.03773 · arxiv_version: 1809.03773v1 · doi: 10.48550/arxiv.1809.03773 · pith_short_12: XZAGJE7YY6CL · pith_short_16: XZAGJE7YY6CLDV6G · pith_short_8: XZAGJE7Y

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/XZAGJE7YY6CLDV6GTH4ZT4Y5LN \
  | 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: be406493f8c784b1d7c699f999f31d5b532d9ca9e4a0c0fada93c0dcd7dcee98

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "29bcedfeda505a443fd41d7d90ca3df4083b8f55b6022e2ef76dea76eee91aea",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2018-09-11T10:00:35Z",
    "title_canon_sha256": "bc5ebfeddd167243e3b2aef3a1d4f0f6cc47b6d6b519478972d4ac297b559a23"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.03773",
    "kind": "arxiv",
    "version": 1
  }
}