Pith Number

pith:MFYWLSPG

pith:2015:MFYWLSPGRQ3VIRTDGAW2UYUUCL

not attested not anchored not stored refs pending

Variations on an example of Karatzas and Ruf

Robert Fernholz

arxiv:1512.02478 v1 · 2015-12-08 · q-fin.MF

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MFYWLSPGRQ3VIRTDGAW2UYUUCL}

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	2026-05-18T01:24:44.606795Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

617165c9e68c37544663302daa629412eb92893a53d0a8cc2c7249648f500417

Aliases

arxiv: 1512.02478 · arxiv_version: 1512.02478v1 · doi: 10.48550/arxiv.1512.02478 · pith_short_12: MFYWLSPGRQ3V · pith_short_16: MFYWLSPGRQ3VIRTD · pith_short_8: MFYWLSPG

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/MFYWLSPGRQ3VIRTDGAW2UYUUCL \
  | 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: 617165c9e68c37544663302daa629412eb92893a53d0a8cc2c7249648f500417

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d87d25646a0cab6c5639b4e19581637ebaaae0018617f44ebf7ec66f4eef6870",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-fin.MF",
    "submitted_at": "2015-12-08T14:20:21Z",
    "title_canon_sha256": "bc53ce5ac70809892710157d774e82910e39ce2aac2fbd90d5959ffbd3c38367"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.02478",
    "kind": "arxiv",
    "version": 1
  }
}