Pith Number

pith:H3IRMDTX

pith:2019:H3IRMDTXFELTHIGLI4D4XX645X

not attested not anchored not stored refs pending

Parameterized Intractability of Even Set and Shortest Vector Problem

Arnab Bhattacharyya, Bingkai Lin, D\'aniel Marx, \'Edouard Bonnet, Karthik C. S., L\'aszl\'o Egri, Pasin Manurangsi, Suprovat Ghoshal

arxiv:1909.01986 v1 · 2019-09-04 · 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{H3IRMDTXFELTHIGLI4D4XX645X}

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	2026-07-05T00:02:29.360840Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3ed1160e77291733a0cb4707cbdfdcedc7e872388753a292f33bd286c854dbe2

Aliases

arxiv: 1909.01986 · arxiv_version: 1909.01986v1 · doi: 10.48550/arxiv.1909.01986 · pith_short_12: H3IRMDTXFELT · pith_short_16: H3IRMDTXFELTHIGL · pith_short_8: H3IRMDTX

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/H3IRMDTXFELTHIGLI4D4XX645X \
  | 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: 3ed1160e77291733a0cb4707cbdfdcedc7e872388753a292f33bd286c854dbe2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "70514f611e023e05d0a68c2a7c07efc8be24ab4c4a9b3d8d0cdb8aeb4eef82f7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2019-09-04T10:18:08Z",
    "title_canon_sha256": "a7ea0cfd703f3e9a287c2a278971d453bce7d727a51cd3cea4dbdcec64911322"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.01986",
    "kind": "arxiv",
    "version": 1
  }
}