Pith Number

pith:42VO2UXO

pith:2012:42VO2UXOVR5VRUTE6HACYWVRBC

not attested not anchored not stored refs pending

On the Complexity of Trial and Error

Ning Chen, Shengyu Zhang, Xiaohui Bei

arxiv:1205.1183 v2 · 2012-05-06 · cs.CC · cs.DS · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{42VO2UXOVR5VRUTE6HACYWVRBC}

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	2026-05-18T03:27:42.856087Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e6aaed52eeac7b58d264f1c02c5ab108b630aa9a7072417f6fd36ab0dd92333b

Aliases

arxiv: 1205.1183 · arxiv_version: 1205.1183v2 · doi: 10.48550/arxiv.1205.1183 · pith_short_12: 42VO2UXOVR5V · pith_short_16: 42VO2UXOVR5VRUTE · pith_short_8: 42VO2UXO

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/42VO2UXOVR5VRUTE6HACYWVRBC \
  | 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: e6aaed52eeac7b58d264f1c02c5ab108b630aa9a7072417f6fd36ab0dd92333b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6354add3e2c42f12b7b3f1b30d482c941105121ff24fe0b43596baebc475e852",
    "cross_cats_sorted": [
      "cs.DS",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2012-05-06T06:03:27Z",
    "title_canon_sha256": "14d5be27b6ac11fe40d1a79e596b7154f0b8c6eac8565e62b36d2a77365df446"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.1183",
    "kind": "arxiv",
    "version": 2
  }
}