Pith Number

pith:KYZ2BJ5G

pith:2019:KYZ2BJ5G5XOLTEULR3NV64EZJP

not attested not anchored not stored refs pending

Efficient computation of mean reverting portfolios using cyclical coordinate descent

Ben Calderhead, Th\'eophile Griveau-Billion

arxiv:1905.05841 v1 · 2019-05-14 · q-fin.PM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KYZ2BJ5G5XOLTEULR3NV64EZJP}

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	2026-05-17T23:46:08.374777Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5633a0a7a6eddcb9928b8edb5f70994bdce9dc733ce3a368bc13eac6d6e4d69b

Aliases

arxiv: 1905.05841 · arxiv_version: 1905.05841v1 · doi: 10.48550/arxiv.1905.05841 · pith_short_12: KYZ2BJ5G5XOL · pith_short_16: KYZ2BJ5G5XOLTEUL · pith_short_8: KYZ2BJ5G

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/KYZ2BJ5G5XOLTEULR3NV64EZJP \
  | 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: 5633a0a7a6eddcb9928b8edb5f70994bdce9dc733ce3a368bc13eac6d6e4d69b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ce956f0661d2dd0020dd8e75665b81e1e76c2cfb639b550c9a6591de8212b6a9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-fin.PM",
    "submitted_at": "2019-05-14T21:04:14Z",
    "title_canon_sha256": "553e3d64ede4cb68c8fd0d338955bb8820fb025e757e89fba267d4a27e0ac07d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.05841",
    "kind": "arxiv",
    "version": 1
  }
}