Pith Number

pith:42AXSUBG

pith:2017:42AXSUBGOUBLIUE3BNDDFCCZ63

not attested not anchored not stored refs pending

Convergence and submeasures in Boolean algebras

Thomas Jech

arxiv:1705.01019 v1 · 2017-05-02 · 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{42AXSUBGOUBLIUE3BNDDFCCZ63}

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	2026-05-18T00:45:09.069273Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e6817950267502b4509b0b46328859f6fe65964eb1fb932516ba7ee2b056fafa

Aliases

arxiv: 1705.01019 · arxiv_version: 1705.01019v1 · doi: 10.48550/arxiv.1705.01019 · pith_short_12: 42AXSUBGOUBL · pith_short_16: 42AXSUBGOUBLIUE3 · pith_short_8: 42AXSUBG

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/42AXSUBGOUBLIUE3BNDDFCCZ63 \
  | 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: e6817950267502b4509b0b46328859f6fe65964eb1fb932516ba7ee2b056fafa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b266dbfc380a5589f0b006ee3a8da6b8196432eac52ac208d68e58f0f92813f1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2017-05-02T15:21:31Z",
    "title_canon_sha256": "5af9f89e4630691997e0262e7a95476dafa45db2140537d72dc825b514040a87"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.01019",
    "kind": "arxiv",
    "version": 1
  }
}