Pith Number

pith:3GQPRKXD

pith:2019:3GQPRKXD7HMNVD7IVQGHNSE4FS

not attested not anchored not stored refs pending

Logically-consistent hypothesis testing in the hexagon of oppositions

Julio M. Stern, Luis G. Esteves, Rafael B. Stern, Rafael Izbicki

arxiv:1905.07662 v1 · 2019-05-18 · 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{3GQPRKXD7HMNVD7IVQGHNSE4FS}

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	2026-05-17T23:45:48.874084Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d9a0f8aae3f9d8da8fe8ac0c76c89c2cabc33f50546a9eaa132b68069522c8a3

Aliases

arxiv: 1905.07662 · arxiv_version: 1905.07662v1 · doi: 10.48550/arxiv.1905.07662 · pith_short_12: 3GQPRKXD7HMN · pith_short_16: 3GQPRKXD7HMNVD7I · pith_short_8: 3GQPRKXD

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/3GQPRKXD7HMNVD7IVQGHNSE4FS \
  | 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: d9a0f8aae3f9d8da8fe8ac0c76c89c2cabc33f50546a9eaa132b68069522c8a3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b55b748c5b2723a1c84c389c92908926c64d4940ac382fafb2ad3b44e99bf823",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2019-05-18T23:58:50Z",
    "title_canon_sha256": "8e48bd1d1f0a2e1ec6da9ab492ccc44649cc5e85452d814630948d837cf45b11"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.07662",
    "kind": "arxiv",
    "version": 1
  }
}