Pith Number

pith:FEQHKLNB

pith:2016:FEQHKLNBE57VNJKWOSVXONLCVN

not attested not anchored not stored refs pending

Tight Hardness Results for Distance and Centrality Problems in Constant Degree Graphs

Jacob Evald, S{\o}ren Dahlgaard

arxiv:1609.08403 v2 · 2016-09-27 · cs.DS · 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{FEQHKLNBE57VNJKWOSVXONLCVN}

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	2026-05-18T00:46:04.320029Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2920752da1277f56a55674ab773562ab7d9e0b90f10d59132ea870859c330932

Aliases

arxiv: 1609.08403 · arxiv_version: 1609.08403v2 · doi: 10.48550/arxiv.1609.08403 · pith_short_12: FEQHKLNBE57V · pith_short_16: FEQHKLNBE57VNJKW · pith_short_8: FEQHKLNB

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/FEQHKLNBE57VNJKWOSVXONLCVN \
  | 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: 2920752da1277f56a55674ab773562ab7d9e0b90f10d59132ea870859c330932

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc44c6ef58e574b6b420b5d42f09e8ea1574c4d978ead131b079d6ea63438053",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2016-09-27T13:20:49Z",
    "title_canon_sha256": "84896836e09b3f5c11fc4cc26380d41a75a300b718ef0a986dc050b377ed7f6d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.08403",
    "kind": "arxiv",
    "version": 2
  }
}