Pith Number

pith:CIZXIOUO

pith:2013:CIZXIOUO2CKBWDDKRS7HNG3WRR

not attested not anchored not stored refs pending

An approach to basic set theory and logic

Jerzy Dydak

arxiv:1305.3283 v1 · 2013-05-14 · math.LO · math.GN · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CIZXIOUO2CKBWDDKRS7HNG3WRR}

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	2026-05-18T03:25:36.231555Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1233743a8ed0941b0c6a8cbe769b768c6ee65eb5cf6acb1b8ada9864191b12b6

Aliases

arxiv: 1305.3283 · arxiv_version: 1305.3283v1 · doi: 10.48550/arxiv.1305.3283 · pith_short_12: CIZXIOUO2CKB · pith_short_16: CIZXIOUO2CKBWDDK · pith_short_8: CIZXIOUO

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/CIZXIOUO2CKBWDDKRS7HNG3WRR \
  | 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: 1233743a8ed0941b0c6a8cbe769b768c6ee65eb5cf6acb1b8ada9864191b12b6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f2c3299b0fc08212bb1dbd820f52e965447b59b3202b68128c7e7db1aebb56d5",
    "cross_cats_sorted": [
      "math.GN",
      "math.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2013-05-14T20:06:09Z",
    "title_canon_sha256": "0b7afdaff9dcf7c9bd203264d4bf268e012b8afcea4ea6bbe58a758df6b46f1b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.3283",
    "kind": "arxiv",
    "version": 1
  }
}