Pith Number

pith:EK66URR2

pith:2009:EK66URR2BV3W3XQHB26G5XUBSN

not attested not anchored not stored refs pending

Frugal Mechanism Design via Spectral Techniques

Edith Elkind, Fedor Petrov, Nick Gravin, Ning Chen

arxiv:0912.3403 v2 · 2009-12-17 · 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{EK66URR2BV3W3XQHB26G5XUBSN}

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	2026-05-18T03:41:20.507272Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

22bdea463a0d776dde070ebc6ede81936c45f0f5c4566e22cd95dbe29c63e784

Aliases

arxiv: 0912.3403 · arxiv_version: 0912.3403v2 · doi: 10.48550/arxiv.0912.3403 · pith_short_12: EK66URR2BV3W · pith_short_16: EK66URR2BV3W3XQH · pith_short_8: EK66URR2

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/EK66URR2BV3W3XQHB26G5XUBSN \
  | 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: 22bdea463a0d776dde070ebc6ede81936c45f0f5c4566e22cd95dbe29c63e784

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b86ce2b847a6daa133c85f01f816ab8ae08a8be6efbc60144e7bd9ff755610e9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.GT",
    "submitted_at": "2009-12-17T15:44:58Z",
    "title_canon_sha256": "90cbe552a572b61453f12503c1d55311ae388e971688578a59bd0d68dcfaa9cc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.3403",
    "kind": "arxiv",
    "version": 2
  }
}