Pith Number

pith:IQ3PFI6B

pith:2011:IQ3PFI6BAH5GEVRO6UOAST5DIW

not attested not anchored not stored refs pending

An approximately truthful-in-expectation mechanism for combinatorial auctions using value queries

Jan Vondrak, Qiqi Yan, Shaddin Dughmi, Tim Roughgarden

arxiv:1109.1053 v1 · 2011-09-06 · 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{IQ3PFI6BAH5GEVRO6UOAST5DIW}

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	2026-05-18T04:14:05.511123Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4436f2a3c101fa62562ef51c094fa3458f6d91ea920aec6d72b006e1ccdb613e

Aliases

arxiv: 1109.1053 · arxiv_version: 1109.1053v1 · doi: 10.48550/arxiv.1109.1053 · pith_short_12: IQ3PFI6BAH5G · pith_short_16: IQ3PFI6BAH5GEVRO · pith_short_8: IQ3PFI6B

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/IQ3PFI6BAH5GEVRO6UOAST5DIW \
  | 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: 4436f2a3c101fa62562ef51c094fa3458f6d91ea920aec6d72b006e1ccdb613e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d5f3cfd8be5347dc1df4e59e1dd6305392c9c7c98f49718ecbc5b74cd3fb69f",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.GT",
    "submitted_at": "2011-09-06T04:10:13Z",
    "title_canon_sha256": "d2d532d77d3db1471c09c04322a3d821a6b181951b0aa41106e66a95dcc28a44"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.1053",
    "kind": "arxiv",
    "version": 1
  }
}