Pith Number

pith:6UWQPIYO

pith:2018:6UWQPIYOHECRRQDWEFMBZM4MJV

not attested not anchored not stored refs pending

Multitasking Capacity: Hardness Results and Improved Constructions

Alexander Yu, Daniel Reichman, Igor Shinkar, Jonathan D. Cohen, Noga Alon, Pasin Manurangsi, Tal Wagner, Thomas L. Griffiths

arxiv:1809.02835 v1 · 2018-09-08 · 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{6UWQPIYOHECRRQDWEFMBZM4MJV}

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	2026-05-18T00:06:10.822095Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f52d07a30e390518c07621581cb38c4d747305dc26c4b63ffe9307907352cb75

Aliases

arxiv: 1809.02835 · arxiv_version: 1809.02835v1 · doi: 10.48550/arxiv.1809.02835 · pith_short_12: 6UWQPIYOHECR · pith_short_16: 6UWQPIYOHECRRQDW · pith_short_8: 6UWQPIYO

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/6UWQPIYOHECRRQDWEFMBZM4MJV \
  | 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: f52d07a30e390518c07621581cb38c4d747305dc26c4b63ffe9307907352cb75

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e8ff83be47745a50004b4017c47551e4cd044e5d141b173c6b801cf9fa61dd6c",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2018-09-08T17:04:36Z",
    "title_canon_sha256": "ad74895f13e20b1db51c6dc8af14d164758ef4aa9fabc6478bd3c12946952653"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.02835",
    "kind": "arxiv",
    "version": 1
  }
}