Pith Number

pith:Z52KPWFO

pith:2017:Z52KPWFOU4ZVWPQ3HVNONMS24D

not attested not anchored not stored refs pending

Stack Semantics of Type Theory

Bassel Mannaa, Fabian Ruch, Thierry Coquand

arxiv:1701.02571 v2 · 2017-01-10 · 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{Z52KPWFOU4ZVWPQ3HVNONMS24D}

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	2026-05-18T00:46:04.108047Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf74a7d8aea7335b3e1b3d5ae6b25ae0fba168020138eb871acc67b88bb8d0dd

Aliases

arxiv: 1701.02571 · arxiv_version: 1701.02571v2 · doi: 10.48550/arxiv.1701.02571 · pith_short_12: Z52KPWFOU4ZV · pith_short_16: Z52KPWFOU4ZVWPQ3 · pith_short_8: Z52KPWFO

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/Z52KPWFOU4ZVWPQ3HVNONMS24D \
  | 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: cf74a7d8aea7335b3e1b3d5ae6b25ae0fba168020138eb871acc67b88bb8d0dd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5aa00fdb8aadec498afbd336d66c8e5edb1877bc5740d54baed9904183a6d84d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2017-01-10T13:09:52Z",
    "title_canon_sha256": "528decd8f6bd66c7b780aa12c362024d1bea6a00ace11b4f700b902e34851a10"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.02571",
    "kind": "arxiv",
    "version": 2
  }
}