Pith Number

pith:52BRT4AH

pith:2009:52BRT4AHAV2NEJD5ANEP6SHIGU

not attested not anchored not stored refs pending

Privacy in Search Logs

Ashwin Machanavajjhala, Guozhang Wang, Johannes Gehrke, Michaela Goetz, Xiaokui Xiao

arxiv:0904.0682 v4 · 2009-04-04 · cs.DB · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{52BRT4AHAV2NEJD5ANEP6SHIGU}

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	2026-05-18T04:22:11.610596Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ee8319f0070574d2247d0348ff48e835276fbea52892cd8a74f31544718d772c

Aliases

arxiv: 0904.0682 · arxiv_version: 0904.0682v4 · doi: 10.48550/arxiv.0904.0682 · pith_short_12: 52BRT4AHAV2N · pith_short_16: 52BRT4AHAV2NEJD5 · pith_short_8: 52BRT4AH

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/52BRT4AHAV2NEJD5ANEP6SHIGU \
  | 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: ee8319f0070574d2247d0348ff48e835276fbea52892cd8a74f31544718d772c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "428b2397b1148db99bb1e420e84fbcc48a515b2993fe8015235f711ca57221ff",
    "cross_cats_sorted": [
      "cs.IR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2009-04-04T05:49:00Z",
    "title_canon_sha256": "a3f4c5f6c535a920c62d6e64f7d48341c41d39b19811a2d75e36d3f283d555e4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.0682",
    "kind": "arxiv",
    "version": 4
  }
}