Pith Number

pith:DBTFSSB7

pith:2012:DBTFSSB7FOZROIGG7TBSIAIH7E

not attested not anchored not stored refs pending

Technical Note: Exploring \Sigma^P_2 / \Pi^P_2-hardness for Argumentation Problems with fixed distance to tractable classes

Wolfgang Dvo\v{r}\'ak

arxiv:1201.0478 v1 · 2012-01-02 · cs.AI · cs.CC

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DBTFSSB7FOZROIGG7TBSIAIH7E}

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	2026-05-18T02:21:26.785425Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

186659483f2bb31720c6fcc3240107f909b9860f205fe02e5231322750da0dc9

Aliases

arxiv: 1201.0478 · arxiv_version: 1201.0478v1 · doi: 10.48550/arxiv.1201.0478 · pith_short_12: DBTFSSB7FOZR · pith_short_16: DBTFSSB7FOZROIGG · pith_short_8: DBTFSSB7

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/DBTFSSB7FOZROIGG7TBSIAIH7E \
  | 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: 186659483f2bb31720c6fcc3240107f909b9860f205fe02e5231322750da0dc9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "439bd139f65ec0bbf70698027a0c6cd5890d3dd965ade1a6b44d508e3d933b9b",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2012-01-02T14:59:11Z",
    "title_canon_sha256": "e7fa91b6435c0d91d06b9153a32a69d3b96d170bc603c8d94d39e9081e5a7ed3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.0478",
    "kind": "arxiv",
    "version": 1
  }
}