Pith Number

pith:HKE24PKN

pith:2018:HKE24PKNOFRDM4WU2UY3M2NRPL

not attested not anchored not stored refs pending

Truth, Disjunction, and Induction

Ali Enayat, Fedor Pakhomov

arxiv:1805.09890 v1 · 2018-05-24 · 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{HKE24PKNOFRDM4WU2UY3M2NRPL}

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	2026-05-18T00:14:58.868658Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3a89ae3d4d71623672d4d531b669b17af66c97fd42373f8210a3c72a745d7e20

Aliases

arxiv: 1805.09890 · arxiv_version: 1805.09890v1 · doi: 10.48550/arxiv.1805.09890 · pith_short_12: HKE24PKNOFRD · pith_short_16: HKE24PKNOFRDM4WU · pith_short_8: HKE24PKN

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/HKE24PKNOFRDM4WU2UY3M2NRPL \
  | 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: 3a89ae3d4d71623672d4d531b669b17af66c97fd42373f8210a3c72a745d7e20

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "18e00c2dd3265ff83a47a9463635a4554f1ba4f4d9f8eee28a3638e3e99d3edd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2018-05-24T20:43:47Z",
    "title_canon_sha256": "9045f3991980e62b7c432585a6cdb61a0c5497058b3f03e9e18e0bcb1e1a6d28"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.09890",
    "kind": "arxiv",
    "version": 1
  }
}