Pith Number

pith:EZS2BETD

pith:2017:EZS2BETDHICA6NTPYFPVL2IGTC

not attested not anchored not stored refs pending

Effect algebras as presheaves on finite Boolean algebras

Gejza Jen\v{c}a

arxiv:1705.06498 v2 · 2017-05-18 · math.RA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EZS2BETDHICA6NTPYFPVL2IGTC}

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	2026-05-17T23:47:54.057624Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2665a092633a040f366fc15f55e90698b80ec2846d343ff8336c8439cc94ea47

Aliases

arxiv: 1705.06498 · arxiv_version: 1705.06498v2 · doi: 10.48550/arxiv.1705.06498 · pith_short_12: EZS2BETDHICA · pith_short_16: EZS2BETDHICA6NTP · pith_short_8: EZS2BETD

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/EZS2BETDHICA6NTPYFPVL2IGTC \
  | 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: 2665a092633a040f366fc15f55e90698b80ec2846d343ff8336c8439cc94ea47

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3a2167eda0ec8bd0c03a2a9321c251a892d2e22453d5f0c58e1049750b5c80cb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2017-05-18T09:50:36Z",
    "title_canon_sha256": "b3c9088e00ad4a0924403d71b73b1ddc9d24ca371d706804be4f27bd2befdb79"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.06498",
    "kind": "arxiv",
    "version": 2
  }
}