Pith Number

pith:EWXDVQNB

pith:2017:EWXDVQNBVMBVGDOPO2AZ7FQFPS

not attested not anchored not stored refs pending

Wright meets Markowitz: How standard portfolio theory changes when assets are technologies following experience curves

Fabrizio Lillo, Fran\c{c}ois Lafond, J. Doyne Farmer, Rupert Way, Valentyn Panchenko

arxiv:1705.03423 v3 · 2017-05-09 · q-fin.EC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EWXDVQNBVMBVGDOPO2AZ7FQFPS}

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	2026-05-18T00:07:18.667472Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

25ae3ac1a1ab03530dcf76819f96057cb31b8eeee900d0075f8552039a807347

Aliases

arxiv: 1705.03423 · arxiv_version: 1705.03423v3 · doi: 10.48550/arxiv.1705.03423 · pith_short_12: EWXDVQNBVMBV · pith_short_16: EWXDVQNBVMBVGDOP · pith_short_8: EWXDVQNB

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/EWXDVQNBVMBVGDOPO2AZ7FQFPS \
  | 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: 25ae3ac1a1ab03530dcf76819f96057cb31b8eeee900d0075f8552039a807347

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0d5212563cda9ad3731a52811094378f180fd8277162c3ab165e880096d18df8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-fin.EC",
    "submitted_at": "2017-05-09T16:53:34Z",
    "title_canon_sha256": "170449c81ca6b30d77155ac42ccb8ab1ef9ad6579a9051526c4242264fc07289"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.03423",
    "kind": "arxiv",
    "version": 3
  }
}