pith. sign in
Pith Number

pith:QRX3S4CP

pith:2018:QRX3S4CP4SPY2CQXAKXV57YPF7
not attested not anchored not stored refs pending

Power spectral density of a single Brownian trajectory: What one can and cannot learn from it

Alessio Squarcini, Diego Krapf, Enzo Marinari, Gleb Oshanin, Ralf Metzler, Xinran Xu

arxiv:1801.02986 v1 · 2018-01-09 · cond-mat.stat-mech · math.ST · stat.TH

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{QRX3S4CP4SPY2CQXAKXV57YPF7}

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 2026-05-18T00:13:45.105461Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

846fb9704fe49f8d0a1702af5eff0f2fcd5da760b33530bbaa0d4bce7d621bb8

Aliases

arxiv: 1801.02986 · arxiv_version: 1801.02986v1 · doi: 10.48550/arxiv.1801.02986 · pith_short_12: QRX3S4CP4SPY · pith_short_16: QRX3S4CP4SPY2CQX · pith_short_8: QRX3S4CP
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/QRX3S4CP4SPY2CQXAKXV57YPF7 \
  | 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: 846fb9704fe49f8d0a1702af5eff0f2fcd5da760b33530bbaa0d4bce7d621bb8
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "14d951329bfb2b2875b41632ea3fb7922057f327e4fb99057c8abc151058cace",
    "cross_cats_sorted": [
      "math.ST",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.stat-mech",
    "submitted_at": "2018-01-09T15:07:10Z",
    "title_canon_sha256": "f59f4c8d63b45986192458c688d511beceb523b149f140168e172f49112247c1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.02986",
    "kind": "arxiv",
    "version": 1
  }
}