Pith Number

pith:5UMKQMGM

pith:2017:5UMKQMGMBQA7CV37WBEYNBB4ER

not attested not anchored not stored refs pending

On the Semantics of Intensionality and Intensional Recursion

G. A. Kavvos

arxiv:1712.09302 v1 · 2017-12-26 · cs.LO · cs.PL · math.CT · 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{5UMKQMGMBQA7CV37WBEYNBB4ER}

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	2026-05-18T00:27:13.988417Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ed18a830cc0c01f1577fb04986843c2470ddcfd5ca955f7b45d921ae087b3427

Aliases

arxiv: 1712.09302 · arxiv_version: 1712.09302v1 · doi: 10.48550/arxiv.1712.09302 · pith_short_12: 5UMKQMGMBQA7 · pith_short_16: 5UMKQMGMBQA7CV37 · pith_short_8: 5UMKQMGM

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/5UMKQMGMBQA7CV37WBEYNBB4ER \
  | 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: ed18a830cc0c01f1577fb04986843c2470ddcfd5ca955f7b45d921ae087b3427

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aa2c4024b6792c98eb419347bf886c26e63d65023734782568569a59f9ff9f9b",
    "cross_cats_sorted": [
      "cs.PL",
      "math.CT",
      "math.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2017-12-26T16:29:51Z",
    "title_canon_sha256": "5bf420fad76d81d884984c3911f64955d6347a6bd62502e3fc834b5182c63f9f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.09302",
    "kind": "arxiv",
    "version": 1
  }
}