Pith Number

pith:XJL7535F

pith:2018:XJL7535FVSPWI7GZPG72DBQXXQ

not attested not anchored not stored refs pending

Conceptua: Institutions in a Topos

Robert E. Kent

arxiv:1811.02041 v1 · 2018-11-05 · 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{XJL7535FVSPWI7GZPG72DBQXXQ}

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	2026-05-18T00:01:32.476135Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ba57feefa5ac9f647cd979bfa18617bc3b357f6123e7e96faf0196bd2aa6e722

Aliases

arxiv: 1811.02041 · arxiv_version: 1811.02041v1 · doi: 10.48550/arxiv.1811.02041 · pith_short_12: XJL7535FVSPW · pith_short_16: XJL7535FVSPWI7GZ · pith_short_8: XJL7535F

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/XJL7535FVSPWI7GZPG72DBQXXQ \
  | 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: ba57feefa5ac9f647cd979bfa18617bc3b357f6123e7e96faf0196bd2aa6e722

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7a7b33ae29ca562e42141681a5bcd92ba22950df2a6557adf5351e98dd72461f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2018-11-05T21:35:00Z",
    "title_canon_sha256": "9f11659425bd318b1e4e74ee0e926c77a298b288e8215ffda8053ffee0738e77"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.02041",
    "kind": "arxiv",
    "version": 1
  }
}