Pith Number

pith:MYC734FK

pith:2012:MYC734FKM6MDBKMCKL2NKKM3FZ

not attested not anchored not stored refs pending

Negative Call Prices

Johannes Ruf

arxiv:1204.1903 v2 · 2012-04-09 · q-fin.PR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MYC734FKM6MDBKMCKL2NKKM3FZ}

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	2026-05-18T03:37:27.724505Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6605fdf0aa679830a98252f4d5299b2e70709bc4f162330692964baee12aa8b9

Aliases

arxiv: 1204.1903 · arxiv_version: 1204.1903v2 · doi: 10.48550/arxiv.1204.1903 · pith_short_12: MYC734FKM6MD · pith_short_16: MYC734FKM6MDBKMC · pith_short_8: MYC734FK

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/MYC734FKM6MDBKMCKL2NKKM3FZ \
  | 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: 6605fdf0aa679830a98252f4d5299b2e70709bc4f162330692964baee12aa8b9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c053aff8f238c67be8140e2e543887a95d6ed98081cad823ab5f6b721ebec5fc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-fin.PR",
    "submitted_at": "2012-04-09T15:35:14Z",
    "title_canon_sha256": "0da7212772ab6409b2a81db7dd47579554c9b8d3a61a415a8f11ac29c3dcc790"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.1903",
    "kind": "arxiv",
    "version": 2
  }
}