Pith Number

pith:UVIGT2HS

pith:2011:UVIGT2HS7QVRAQQ32R22KM4NT3

not attested not anchored not stored refs pending

From X to Pi; Representing the Classical Sequent Calculus in the Pi-calculus

Luca Cardelli, Maria Grazia Vigliotti, Steffen van Bakel

arxiv:1109.4817 v1 · 2011-09-22 · 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{UVIGT2HS7QVRAQQ32R22KM4NT3}

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	2026-05-18T04:12:32.852013Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a55069e8f2fc2b10421bd475a5338d9ed4ed70af75a9277397316fe04da752b1

Aliases

arxiv: 1109.4817 · arxiv_version: 1109.4817v1 · doi: 10.48550/arxiv.1109.4817 · pith_short_12: UVIGT2HS7QVR · pith_short_16: UVIGT2HS7QVRAQQ3 · pith_short_8: UVIGT2HS

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/UVIGT2HS7QVRAQQ32R22KM4NT3 \
  | 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: a55069e8f2fc2b10421bd475a5338d9ed4ed70af75a9277397316fe04da752b1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eab19c5b0dd4160402fb1cbb0b5a67f4ba685ff0d67a57e66471a402996624af",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2011-09-22T14:05:38Z",
    "title_canon_sha256": "46d2a76ee45d99ef76455b7e6f37256134c72d1c543f8881ab1276f10339ecfc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.4817",
    "kind": "arxiv",
    "version": 1
  }
}