Pith Number

pith:XLFL4FVB

pith:2011:XLFL4FVBY7MHDF5TIJEZZG6WIJ

not attested not anchored not stored refs pending

Soft Session Types

Paolo Di Giamberardino, Ugo Dal Lago

arxiv:1108.4467 v1 · 2011-08-23 · cs.LO · 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{XLFL4FVBY7MHDF5TIJEZZG6WIJ}

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	2026-05-18T04:14:54.551440Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bacabe16a1c7d87197b342499c9bd642727b85f5d9547957ac7e76769e2ce6af

Aliases

arxiv: 1108.4467 · arxiv_version: 1108.4467v1 · doi: 10.48550/arxiv.1108.4467 · pith_short_12: XLFL4FVBY7MH · pith_short_16: XLFL4FVBY7MHDF5T · pith_short_8: XLFL4FVB

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/XLFL4FVBY7MHDF5TIJEZZG6WIJ \
  | 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: bacabe16a1c7d87197b342499c9bd642727b85f5d9547957ac7e76769e2ce6af

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "298e02520387f0eb732bb432409ecf6deab7bf692346dcaa5229f0015f43a348",
    "cross_cats_sorted": [
      "cs.PL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2011-08-23T01:23:29Z",
    "title_canon_sha256": "bec8183c412d9923ae837669140f4664c6b0c8e1f49a08eafa19dbed5ff53016"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.4467",
    "kind": "arxiv",
    "version": 1
  }
}