Pith Number

pith:PQRRSZO4

pith:2011:PQRRSZO4SWQV7F7X5JNEBUJHCZ

not attested not anchored not stored refs pending

A Truthful Randomized Mechanism for Combinatorial Public Projects via Convex Optimization

Shaddin Dughmi

arxiv:1103.0041 v2 · 2011-02-28 · cs.GT · 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{PQRRSZO4SWQV7F7X5JNEBUJHCZ}

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	2026-05-18T04:24:05.866657Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c231965dc95a15f97f7ea5a40d127167d860c214c92f9f2daeb2b13f993e59f

Aliases

arxiv: 1103.0041 · arxiv_version: 1103.0041v2 · doi: 10.48550/arxiv.1103.0041 · pith_short_12: PQRRSZO4SWQV · pith_short_16: PQRRSZO4SWQV7F7X · pith_short_8: PQRRSZO4

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/PQRRSZO4SWQV7F7X5JNEBUJHCZ \
  | 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: 7c231965dc95a15f97f7ea5a40d127167d860c214c92f9f2daeb2b13f993e59f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "01bac7a83e2cc3cff6d87ab428d8cb92c0b6e79b4c9f15588a951e17588201c1",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.GT",
    "submitted_at": "2011-02-28T22:18:57Z",
    "title_canon_sha256": "9dc6d77dff4108e8a0a5975dc3908346c7b20f617280dcdde56fafe7eb33655c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.0041",
    "kind": "arxiv",
    "version": 2
  }
}