Pith Number

pith:KS4EP2WX

pith:2018:KS4EP2WX7S2FI3AVRFZXHIWHNX

not attested not anchored not stored refs pending

Adventures in Formalisation: Financial Contracts, Modules, and Two-Level Type Theory

Danil Annenkov

arxiv:1811.11317 v1 · 2018-11-28 · cs.PL

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KS4EP2WX7S2FI3AVRFZXHIWHNX}

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	2026-05-17T23:59:44.182157Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

54b847ead7fcb4546c15897373a2c76def2efa4f26dc6e48ff8c740bc69e1889

Aliases

arxiv: 1811.11317 · arxiv_version: 1811.11317v1 · doi: 10.48550/arxiv.1811.11317 · pith_short_12: KS4EP2WX7S2F · pith_short_16: KS4EP2WX7S2FI3AV · pith_short_8: KS4EP2WX

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/KS4EP2WX7S2FI3AVRFZXHIWHNX \
  | 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: 54b847ead7fcb4546c15897373a2c76def2efa4f26dc6e48ff8c740bc69e1889

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7d7c9e770f9894d6804c220d31920c892fdec3d26f048203f69f02989bcd5d4a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2018-11-28T00:05:16Z",
    "title_canon_sha256": "e6d68406f803fb8812a35b00125a8f62c19f6edf46e6af7ad8a053385ab1bd8a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.11317",
    "kind": "arxiv",
    "version": 1
  }
}