Pith Number

pith:IUF2WL2N

pith:2010:IUF2WL2N5RNXSS4QKV5TM5NHAB

not attested not anchored not stored refs pending

Prediction strategies without loss

Michael Kapralov, Rina Panigrahy

arxiv:1008.3672 v5 · 2010-08-22 · 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{IUF2WL2N5RNXSS4QKV5TM5NHAB}

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	2026-05-18T03:43:40.687588Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

450bab2f4dec5b794b90557b3675a7004fc12fbcd6a198fa5b33b29606763cd9

Aliases

arxiv: 1008.3672 · arxiv_version: 1008.3672v5 · doi: 10.48550/arxiv.1008.3672 · pith_short_12: IUF2WL2N5RNX · pith_short_16: IUF2WL2N5RNXSS4Q · pith_short_8: IUF2WL2N

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/IUF2WL2N5RNXSS4QKV5TM5NHAB \
  | 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: 450bab2f4dec5b794b90557b3675a7004fc12fbcd6a198fa5b33b29606763cd9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "72288b46fb4254d76d90730123323a57aadb33055b6a17919ec2951c28cebbba",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2010-08-22T01:09:56Z",
    "title_canon_sha256": "92cdd999ef5ea80cd7dfcf2ffec929159ebcabc8529c2bb8842b8d1091234762"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.3672",
    "kind": "arxiv",
    "version": 5
  }
}