Pith Number

pith:IQBBSLQR

pith:2012:IQBBSLQRJHXVYFP3PO6ULD7O4L

not attested not anchored not stored refs pending

Intuitionistic Existential Instantiation and Epsilon Symbol

Grigori Mints

arxiv:1208.0861 v1 · 2012-08-03 · math.LO · cs.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{IQBBSLQRJHXVYFP3PO6ULD7O4L}

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	2026-05-18T03:48:46.159759Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4402192e1149ef5c15fb7bbd458feee2e43ebc839347158ef33694780825a3c2

Aliases

arxiv: 1208.0861 · arxiv_version: 1208.0861v1 · doi: 10.48550/arxiv.1208.0861 · pith_short_12: IQBBSLQRJHXV · pith_short_16: IQBBSLQRJHXVYFP3 · pith_short_8: IQBBSLQR

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/IQBBSLQRJHXVYFP3PO6ULD7O4L \
  | 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: 4402192e1149ef5c15fb7bbd458feee2e43ebc839347158ef33694780825a3c2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fcb99a1697d09093649b880bc6d49365376e95bcc4995b8863c7f1df9d8ce7df",
    "cross_cats_sorted": [
      "cs.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2012-08-03T22:23:22Z",
    "title_canon_sha256": "5d7483c0926a3d3f1f96572439dbd0b78dcbf252fb1a4bceddb37c4bd51631c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.0861",
    "kind": "arxiv",
    "version": 1
  }
}