Pith Number

pith:H4R2XNII

pith:2006:H4R2XNIIHPO5E7V2MJ53QDCSSY

not attested not anchored not stored refs pending

Definitions by rewriting in the Calculus of Constructions

Fr\'ed\'eric Blanqui (INRIA Lorraine - LORIA, LIX)

arxiv:cs/0610072 v1 · 2006-10-12 · 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{H4R2XNIIHPO5E7V2MJ53QDCSSY}

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	2026-05-18T01:08:54.314191Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f23abb5083bddd27eba627bb80c52962143da45c4d472e11c63dffa075f8b7e

Aliases

arxiv: cs/0610072 · arxiv_version: cs/0610072v1 · doi: 10.48550/arxiv.cs/0610072 · pith_short_12: H4R2XNIIHPO5 · pith_short_16: H4R2XNIIHPO5E7V2 · pith_short_8: H4R2XNII

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/H4R2XNIIHPO5E7V2MJ53QDCSSY \
  | 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: 3f23abb5083bddd27eba627bb80c52962143da45c4d472e11c63dffa075f8b7e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0bc41067a931642ea8bc922d9c3df4f819228df66c2add278253af26bb057b8f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cs.LO",
    "submitted_at": "2006-10-12T11:47:54Z",
    "title_canon_sha256": "821f673e708a31ba92e26db7dacad3414c0ca003bcc6d36ebb6d7ced79205ed7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cs/0610072",
    "kind": "arxiv",
    "version": 1
  }
}