Pith Number

pith:3HCTHLTM

pith:2012:3HCTHLTMWVQ5ZSCMA5NSQUPBTE

not attested not anchored not stored refs pending

Modular Type-Safety Proofs using Dependant Types

Christopher Schwaab, Jeremy G. Siek

arxiv:1208.0535 v1 · 2012-08-02 · 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{3HCTHLTMWVQ5ZSCMA5NSQUPBTE}

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	2026-05-18T03:49:33.854937Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d9c533ae6cb561dcc84c075b2851e1991ecf763dd2fb75cfb3f25eca52b26f2a

Aliases

arxiv: 1208.0535 · arxiv_version: 1208.0535v1 · doi: 10.48550/arxiv.1208.0535 · pith_short_12: 3HCTHLTMWVQ5 · pith_short_16: 3HCTHLTMWVQ5ZSCM · pith_short_8: 3HCTHLTM

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/3HCTHLTMWVQ5ZSCMA5NSQUPBTE \
  | 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: d9c533ae6cb561dcc84c075b2851e1991ecf763dd2fb75cfb3f25eca52b26f2a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "98ccc25b32d87ab171a0fee875e4fbf0455e9473d52c62f98f4bc7f06d1b9368",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2012-08-02T16:38:13Z",
    "title_canon_sha256": "01652a2a8f4fcc11f9b861bf0d176c338df0f1d51ce8adca418f48bc0b38c72c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.0535",
    "kind": "arxiv",
    "version": 1
  }
}