Pith Number

pith:W4H5P6WP

pith:2018:W4H5P6WPZBJBN3TBI67NNU52CR

not attested not anchored not stored refs pending

On the computational complexity of MSTD sets

Tanuj Mathur, Tian An Wong

arxiv:1810.07358 v1 · 2018-10-17 · math.NT · cs.CC · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W4H5P6WPZBJBN3TBI67NNU52CR}

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	2026-05-18T00:02:58.737390Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b70fd7facfc85216ee6147bed6d3ba14576e5919129faadff335797d597e0fba

Aliases

arxiv: 1810.07358 · arxiv_version: 1810.07358v1 · doi: 10.48550/arxiv.1810.07358 · pith_short_12: W4H5P6WPZBJB · pith_short_16: W4H5P6WPZBJBN3TB · pith_short_8: W4H5P6WP

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/W4H5P6WPZBJBN3TBI67NNU52CR \
  | 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: b70fd7facfc85216ee6147bed6d3ba14576e5919129faadff335797d597e0fba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b4e0dbb226b0dc754379553808f954c2824a005d333bad8064fad61c0f5d2eb8",
    "cross_cats_sorted": [
      "cs.CC",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2018-10-17T02:30:45Z",
    "title_canon_sha256": "5668a1762ea40645d010d1f40f30d7bd1840faff785dd207804ddfcaf4fbd975"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.07358",
    "kind": "arxiv",
    "version": 1
  }
}