Pith Number

pith:J3JSQOR5

pith:2013:J3JSQOR5QS7PUEL4FU22WWMQEV

not attested not anchored not stored refs pending

GOTCHA Password Hackers!

Anupam Datta, Jeremiah Blocki, Manuel Blum

arxiv:1310.1137 v1 · 2013-10-04 · cs.CR · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{J3JSQOR5QS7PUEL4FU22WWMQEV}

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	2026-05-18T03:11:23.432336Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4ed3283a3d84befa117c2d35ab59902545626a7149b02195009ad2c58c6599f3

Aliases

arxiv: 1310.1137 · arxiv_version: 1310.1137v1 · doi: 10.48550/arxiv.1310.1137 · pith_short_12: J3JSQOR5QS7P · pith_short_16: J3JSQOR5QS7PUEL4 · pith_short_8: J3JSQOR5

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/J3JSQOR5QS7PUEL4FU22WWMQEV \
  | 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: 4ed3283a3d84befa117c2d35ab59902545626a7149b02195009ad2c58c6599f3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "60c2eaf59daaa63ab72c81c4e71c589cf4edf9e230dffd25095baf241677f920",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2013-10-04T00:29:48Z",
    "title_canon_sha256": "60e6a0b9cbf24025bcd1c9946bf58b91b116c3fdb4a42147c7ec77eb875e33d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.1137",
    "kind": "arxiv",
    "version": 1
  }
}