Pith Number

pith:YI4NQ6VS

pith:2009:YI4NQ6VSQ7KDDMEZHIYAY5QQZY

not attested not anchored not stored refs pending

De-anonymizing Social Networks

Arvind Narayanan, Vitaly Shmatikov

arxiv:0903.3276 v1 · 2009-03-19 · cs.CR · 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{YI4NQ6VSQ7KDDMEZHIYAY5QQZY}

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	2026-05-18T00:58:20.298782Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c238d87ab287d431b0993a300c7610ce278bdfdd0bb94838a7ffc3f1cef61fde

Aliases

arxiv: 0903.3276 · arxiv_version: 0903.3276v1 · doi: 10.48550/arxiv.0903.3276 · pith_short_12: YI4NQ6VSQ7KD · pith_short_16: YI4NQ6VSQ7KDDMEZ · pith_short_8: YI4NQ6VS

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/YI4NQ6VSQ7KDDMEZHIYAY5QQZY \
  | 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: c238d87ab287d431b0993a300c7610ce278bdfdd0bb94838a7ffc3f1cef61fde

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c30ec760a299b95efc66c0f7fdcc32e0af45c62e7d71b73f8b177d1c58fafcd3",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2009-03-19T06:55:46Z",
    "title_canon_sha256": "38c36f160cd7d9cf9d4caf188b16afe17628f3b7cd64f34c3997827295bba14a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.3276",
    "kind": "arxiv",
    "version": 1
  }
}