Pith Number

pith:TKQ2ZQYR

pith:2019:TKQ2ZQYR7RGFYILJS3M62QC7JF

not attested not anchored not stored refs pending

Tarski's relevance logic; Version 2

Roger D. Maddux

arxiv:1901.06567 v2 · 2019-01-19 · 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{TKQ2ZQYR7RGFYILJS3M62QC7JF}

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	2026-05-17T23:52:14.876384Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9aa1acc311fc4c5c216996d9ed405f495456eaee121f85d43f973b05d24af4c4

Aliases

arxiv: 1901.06567 · arxiv_version: 1901.06567v2 · doi: 10.48550/arxiv.1901.06567 · pith_short_12: TKQ2ZQYR7RGF · pith_short_16: TKQ2ZQYR7RGFYILJ · pith_short_8: TKQ2ZQYR

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/TKQ2ZQYR7RGFYILJS3M62QC7JF \
  | 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: 9aa1acc311fc4c5c216996d9ed405f495456eaee121f85d43f973b05d24af4c4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d51cc094559043e3826f2d41e08c3919c6c6573a060076f413511209a0bbeb25",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2019-01-19T18:33:32Z",
    "title_canon_sha256": "498ca7152dc5670e128acaa1358a59682685e72982d41517005b1c05d5feb5a2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.06567",
    "kind": "arxiv",
    "version": 2
  }
}