Pith Number

pith:KMS7OBLB

pith:2017:KMS7OBLBIFBT6UODUEPVBXCEZZ

not attested not anchored not stored refs pending

Fitch-Style Modal Lambda Calculi

Ranald Clouston

arxiv:1710.08326 v2 · 2017-10-23 · 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{KMS7OBLBIFBT6UODUEPVBXCEZZ}

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	2026-05-18T00:25:33.684676Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5325f7056141433f51c3a11f50dc44ce6b69ff939804cdfccdf7b3a48e1aa700

Aliases

arxiv: 1710.08326 · arxiv_version: 1710.08326v2 · doi: 10.48550/arxiv.1710.08326 · pith_short_12: KMS7OBLBIFBT · pith_short_16: KMS7OBLBIFBT6UOD · pith_short_8: KMS7OBLB

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/KMS7OBLBIFBT6UODUEPVBXCEZZ \
  | 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: 5325f7056141433f51c3a11f50dc44ce6b69ff939804cdfccdf7b3a48e1aa700

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "08424255bfe6806c77970a1e7e2f01bddc060d7067064ef900f39e2140105394",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2017-10-23T15:15:27Z",
    "title_canon_sha256": "3d52ddc118445dcc8c5769ff32aecac33b12cf68fa896babf56624524e3e3b94"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.08326",
    "kind": "arxiv",
    "version": 2
  }
}