Pith Number

pith:FXM2EZFD

pith:2011:FXM2EZFD3JELYBXXGA2DDW36MZ

not attested not anchored not stored refs pending

Optimal Crowdsourcing Contests

Balasubramanian Sivan, Jason D. Hartline, Shuchi Chawla

arxiv:1111.2893 v1 · 2011-11-12 · cs.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FXM2EZFD3JELYBXXGA2DDW36MZ}

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	2026-05-18T04:08:23.520816Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2dd9a264a3da48bc06f7303431db7e6644c99cf603a88a30c99d0b0bbbf8a4bc

Aliases

arxiv: 1111.2893 · arxiv_version: 1111.2893v1 · doi: 10.48550/arxiv.1111.2893 · pith_short_12: FXM2EZFD3JEL · pith_short_16: FXM2EZFD3JELYBXX · pith_short_8: FXM2EZFD

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/FXM2EZFD3JELYBXXGA2DDW36MZ \
  | 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: 2dd9a264a3da48bc06f7303431db7e6644c99cf603a88a30c99d0b0bbbf8a4bc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "015e7fa356ec5431e4000d2f265920e1ddb311bc916658d44b56a2fe4739fb13",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.GT",
    "submitted_at": "2011-11-12T02:38:16Z",
    "title_canon_sha256": "2107bfb703dd16b03e8f169c79bf31f348276bc7f27668515b8230b1d42daf28"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.2893",
    "kind": "arxiv",
    "version": 1
  }
}