Pith Number

pith:NQH44DAK

pith:2017:NQH44DAKBYUMHCI72JKJ33G4RO

not attested not anchored not stored refs pending

On sequents of $\Sigma$ formulas

Andre Kornell

arxiv:1704.08155 v4 · 2017-04-26 · 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{NQH44DAKBYUMHCI72JKJ33G4RO}

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	2026-05-18T00:39:46.294565Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c0fce0c0a0e28c3891fd2549decdc8bab39a9faa425b00f06400f462ede569d

Aliases

arxiv: 1704.08155 · arxiv_version: 1704.08155v4 · doi: 10.48550/arxiv.1704.08155 · pith_short_12: NQH44DAKBYUM · pith_short_16: NQH44DAKBYUMHCI7 · pith_short_8: NQH44DAK

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/NQH44DAKBYUMHCI72JKJ33G4RO \
  | 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: 6c0fce0c0a0e28c3891fd2549decdc8bab39a9faa425b00f06400f462ede569d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "06c6647fe141e070bbd845ade29314a205a3aeac818b5fd7b835a437ff023dfa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2017-04-26T15:07:29Z",
    "title_canon_sha256": "f5b0645fff22ba95ea72fe407e9ea8fce6ab9de54c37ca27ce2e37b2c6cda3b6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.08155",
    "kind": "arxiv",
    "version": 4
  }
}