Pith Number

pith:2S7YSOJX

pith:2008:2S7YSOJXIZJZ2F72A7MELWXW2O

not attested not anchored not stored refs pending

Toward Expressive and Scalable Sponsored Search Auctions

David J. Martin, Johannes Gehrke, Joseph Y. Halpern

arxiv:0809.0116 v1 · 2008-08-31 · cs.DB

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2S7YSOJXIZJZ2F72A7MELWXW2O}

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	2026-05-18T00:58:48.399592Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d4bf89393746539d17fa07d845daf6d3b9825fb26a00bed0bb7dc07a0dfdd4ae

Aliases

arxiv: 0809.0116 · arxiv_version: 0809.0116v1 · doi: 10.48550/arxiv.0809.0116 · pith_short_12: 2S7YSOJXIZJZ · pith_short_16: 2S7YSOJXIZJZ2F72 · pith_short_8: 2S7YSOJX

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/2S7YSOJXIZJZ2F72A7MELWXW2O \
  | 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: d4bf89393746539d17fa07d845daf6d3b9825fb26a00bed0bb7dc07a0dfdd4ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55d82d47eb530d2611d42f4a4482eefae126a3eeaa7f48dd9fd3be7a50a8e040",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2008-08-31T12:24:38Z",
    "title_canon_sha256": "60382823fe64e6ec038e4a363d4b8f23663a687e80a7b2d7bfeefab276a0c783"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.0116",
    "kind": "arxiv",
    "version": 1
  }
}