Pith Number

pith:OOAKT6YJ

pith:2018:OOAKT6YJ7WMUAZUC7QSV6DVAP6

not attested not anchored not stored refs pending

Recursive Geman-McClure method for implementing second-order Volterra filter

Guangya Zhu, Lu Lu, Wei Wu, Wenyuan Wang, Xiaomin Yang

arxiv:1808.00613 v2 · 2018-08-02 · cs.SY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OOAKT6YJ7WMUAZUC7QSV6DVAP6}

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	2026-05-18T00:03:45.894357Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7380a9fb09fd99406682fc255f0ea07f8f9e24208d6f766cb2a298efc168221c

Aliases

arxiv: 1808.00613 · arxiv_version: 1808.00613v2 · doi: 10.48550/arxiv.1808.00613 · pith_short_12: OOAKT6YJ7WMU · pith_short_16: OOAKT6YJ7WMUAZUC · pith_short_8: OOAKT6YJ

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/OOAKT6YJ7WMUAZUC7QSV6DVAP6 \
  | 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: 7380a9fb09fd99406682fc255f0ea07f8f9e24208d6f766cb2a298efc168221c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7462ccfad3d39a7e5ba08504433426897e9480186f04421fef41e502a33320d5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SY",
    "submitted_at": "2018-08-02T00:51:32Z",
    "title_canon_sha256": "3de1d31120736f92c6af77841d0a9dc681fd1c0f99927cd88c6900a137541b0c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.00613",
    "kind": "arxiv",
    "version": 2
  }
}