Pith Number

pith:VW2CBFVP

pith:2011:VW2CBFVP2BLICTHF2TCVGWA5GX

not attested not anchored not stored refs pending

Unit Testing in ASPIDE

Francesco Ricca, Kristian Reale, Nicola Leone, Onofrio Febbraro

arxiv:1108.5434 v1 · 2011-08-27 · 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{VW2CBFVP2BLICTHF2TCVGWA5GX}

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	2026-05-18T04:14:37.517235Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

adb42096afd056814ce5d4c553581d35d7ed7cc4552ed9e0fd29b4e8e26a8d22

Aliases

arxiv: 1108.5434 · arxiv_version: 1108.5434v1 · doi: 10.48550/arxiv.1108.5434 · pith_short_12: VW2CBFVP2BLI · pith_short_16: VW2CBFVP2BLICTHF · pith_short_8: VW2CBFVP

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/VW2CBFVP2BLICTHF2TCVGWA5GX \
  | 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: adb42096afd056814ce5d4c553581d35d7ed7cc4552ed9e0fd29b4e8e26a8d22

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "153eb8af61b96215501f22568beeef2ba08f33879970936fae58d44ef1b8555d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2011-08-27T09:36:35Z",
    "title_canon_sha256": "c51b49932ece805d058bd041bee19030c266ed31123984d208ac13fa28e3ba3b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.5434",
    "kind": "arxiv",
    "version": 1
  }
}