Pith Number

pith:QDN7TSDL

pith:2009:QDN7TSDLDAHQ3QDOWIIO4DQXOT

not attested not anchored not stored refs pending

Recurrence interval analysis of high-frequency financial returns and its application to risk estimation

Fei Ren, Wei-Xing Zhou

arxiv:0909.0123 v1 · 2009-09-01 · q-fin.ST · q-fin.RM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QDN7TSDLDAHQ3QDOWIIO4DQXOT}

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	2026-05-18T04:42:44.672376Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80dbf9c86b180f0dc06eb210ee0e1774fc8e6b782edf155ce02bd925ca9c0bef

Aliases

arxiv: 0909.0123 · arxiv_version: 0909.0123v1 · doi: 10.48550/arxiv.0909.0123 · pith_short_12: QDN7TSDLDAHQ · pith_short_16: QDN7TSDLDAHQ3QDO · pith_short_8: QDN7TSDL

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/QDN7TSDLDAHQ3QDOWIIO4DQXOT \
  | 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: 80dbf9c86b180f0dc06eb210ee0e1774fc8e6b782edf155ce02bd925ca9c0bef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "36752667294c5170a217d2dad1d4a2e7d43a2c8f1ec18662168abcdaff63be1b",
    "cross_cats_sorted": [
      "q-fin.RM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-fin.ST",
    "submitted_at": "2009-09-01T08:32:38Z",
    "title_canon_sha256": "ca5e920c5dce772529e3fa14bbc60d59c424d26b5951b46e81b2a3dae880f955"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.0123",
    "kind": "arxiv",
    "version": 1
  }
}