Pith Number

pith:2PCEMVYK

pith:2013:2PCEMVYK3K4OVQIMM7E6MFQ7ZC

not attested not anchored not stored refs pending

On the communication complexity of sparse set disjointness and exists-equal problems

Gabor Tardos, Mert Saglam

arxiv:1304.1217 v1 · 2013-04-04 · 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{2PCEMVYK3K4OVQIMM7E6MFQ7ZC}

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	2026-05-18T03:29:04.226192Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3c446570adab8eac10c67c9e6161fc89bc3eb95b0f07450588b66fd69a24a27

Aliases

arxiv: 1304.1217 · arxiv_version: 1304.1217v1 · doi: 10.48550/arxiv.1304.1217 · pith_short_12: 2PCEMVYK3K4O · pith_short_16: 2PCEMVYK3K4OVQIM · pith_short_8: 2PCEMVYK

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/2PCEMVYK3K4OVQIMM7E6MFQ7ZC \
  | 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: d3c446570adab8eac10c67c9e6161fc89bc3eb95b0f07450588b66fd69a24a27

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "93415ecad75c133f099238a15271f1166cf8e6841be50cbed70e553e2254313f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2013-04-04T00:20:31Z",
    "title_canon_sha256": "d84baf4336f283aaa4214e2c4db068bad1c34df01702197eed9dfd3e6bf310ea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.1217",
    "kind": "arxiv",
    "version": 1
  }
}