Pith Number

pith:A7P3KESM

pith:2008:A7P3KESMVNK7GSXYPENOJFRICU

not attested not anchored not stored refs pending

Effect of changing data size on eigenvalues in the Korean and Japanese stock markets

Cheoljun Eom, SeungHwan Kim, Taisei Kaizoji, Woo-Sung Jung

arxiv:0811.4021 v2 · 2008-11-25 · q-fin.ST · physics.data-an

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{A7P3KESMVNK7GSXYPENOJFRICU}

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	2026-05-18T02:15:13.242520Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

07dfb5124cab55f34af8791ae496281501f8e2a7aba0e9b01488296b7dd0635f

Aliases

arxiv: 0811.4021 · arxiv_version: 0811.4021v2 · doi: 10.48550/arxiv.0811.4021 · pith_short_12: A7P3KESMVNK7 · pith_short_16: A7P3KESMVNK7GSXY · pith_short_8: A7P3KESM

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/A7P3KESMVNK7GSXYPENOJFRICU \
  | 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: 07dfb5124cab55f34af8791ae496281501f8e2a7aba0e9b01488296b7dd0635f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3bdd4b602bb1215ffc9c8e336fcd02c468638b8f2c1254063a7de4d2e1ce6c9b",
    "cross_cats_sorted": [
      "physics.data-an"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-fin.ST",
    "submitted_at": "2008-11-25T07:33:19Z",
    "title_canon_sha256": "b2ce46b0e1ec36ec52ecb8b06375972e6f8afe6634973808fb201b9f786c5d86"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0811.4021",
    "kind": "arxiv",
    "version": 2
  }
}