Pith Number

pith:YDZ7IT7V

pith:2011:YDZ7IT7V762GCJ2WS54PUI6CRK

not attested not anchored not stored refs pending

On Various Negative Translations

Gilda Ferreira, Paulo Oliva

arxiv:1101.5442 v1 · 2011-01-28 · 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{YDZ7IT7V762GCJ2WS54PUI6CRK}

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	2026-05-18T04:30:34.988922Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c0f3f44ff5ffb46127569778fa23c28a9a06138b70a05fd4f03f459c26a9afea

Aliases

arxiv: 1101.5442 · arxiv_version: 1101.5442v1 · doi: 10.48550/arxiv.1101.5442 · pith_short_12: YDZ7IT7V762G · pith_short_16: YDZ7IT7V762GCJ2W · pith_short_8: YDZ7IT7V

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/YDZ7IT7V762GCJ2WS54PUI6CRK \
  | 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: c0f3f44ff5ffb46127569778fa23c28a9a06138b70a05fd4f03f459c26a9afea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d4ba4e0fed5b9ae351a604bfb9ea6578f58c2de74730d8a393ef1f44d3d1bd57",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2011-01-28T04:25:33Z",
    "title_canon_sha256": "c3e8e296e8847393b7971d910768a9a55193d24d30875ca47882d1823f7f7d55"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.5442",
    "kind": "arxiv",
    "version": 1
  }
}