Pith Number

pith:O4I7BNWR

pith:2014:O4I7BNWRF2YYC5B7PLEKJKT53J

not attested not anchored not stored refs pending

Edit Distance Cannot Be Computed in Strongly Subquadratic Time (unless SETH is false)

Arturs Backurs, Piotr Indyk

arxiv:1412.0348 v4 · 2014-12-01 · cs.CC · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O4I7BNWRF2YYC5B7PLEKJKT53J}

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	2026-05-18T00:37:58.806043Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7711f0b6d12eb181743f7ac8a4aa7dda7415e9b75b49c95d0942d8fe1fcbfe9e

Aliases

arxiv: 1412.0348 · arxiv_version: 1412.0348v4 · doi: 10.48550/arxiv.1412.0348 · pith_short_12: O4I7BNWRF2YY · pith_short_16: O4I7BNWRF2YYC5B7 · pith_short_8: O4I7BNWR

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/O4I7BNWRF2YYC5B7PLEKJKT53J \
  | 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: 7711f0b6d12eb181743f7ac8a4aa7dda7415e9b75b49c95d0942d8fe1fcbfe9e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "038ed4330406c480c3980205ef93dabd4cf90df63597214be6777542a63d0063",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2014-12-01T04:57:06Z",
    "title_canon_sha256": "1d60030fd3c39fb58ceb0c32939e46df60e48661d63dbb3bb5c42023c8c0dfd0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.0348",
    "kind": "arxiv",
    "version": 4
  }
}