Pith Number

pith:2K7WYGUK

pith:2017:2K7WYGUKJJIKICQ5WSXCOS4I2W

not attested not anchored not stored refs pending

Dead Alphas as Risk Factors

Willie Yu, Zura Kakushadze

arxiv:1709.06641 v1 · 2017-09-19 · q-fin.PM · q-fin.RM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2K7WYGUKJJIKICQ5WSXCOS4I2W}

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	2026-05-18T00:22:39.535635Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d2bf6c1a8a4a50a40a1db4ae274b88d5bdc11afbd22fd31c968f5d9cdc1e23e7

Aliases

arxiv: 1709.06641 · arxiv_version: 1709.06641v1 · doi: 10.48550/arxiv.1709.06641 · pith_short_12: 2K7WYGUKJJIK · pith_short_16: 2K7WYGUKJJIKICQ5 · pith_short_8: 2K7WYGUK

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/2K7WYGUKJJIKICQ5WSXCOS4I2W \
  | 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: d2bf6c1a8a4a50a40a1db4ae274b88d5bdc11afbd22fd31c968f5d9cdc1e23e7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9003acb850ef06353c4abe0a02feedea0270e921d5183dc91cd82580def176d0",
    "cross_cats_sorted": [
      "q-fin.RM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-fin.PM",
    "submitted_at": "2017-09-19T21:05:38Z",
    "title_canon_sha256": "3bf37d976298ea5bdd5bd6afd6021b794333eb16220126c924bb211623ae7efd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.06641",
    "kind": "arxiv",
    "version": 1
  }
}