Pith Number

pith:W2HQHOWG

pith:2019:W2HQHOWGMYHGNP6VJESZOLW5KW

not attested not anchored not stored refs pending

Solving high-dimensional nonlinear filtering problems using a tensor train decomposition method

Sijing Li, Stephen S.T. Yau, Zhiwen Zhang, Zhongjian Wang

arxiv:1908.04010 v1 · 2019-08-12 · math.NA · cs.CE · cs.NA · cs.SY · eess.SY · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W2HQHOWGMYHGNP6VJESZOLW5KW}

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	2026-07-04T23:53:19.945065Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b68f03bac6660e66bfd54925972edd55b7f6d01c0fadf2203dae8bb9361b3625

Aliases

arxiv: 1908.04010 · arxiv_version: 1908.04010v1 · doi: 10.48550/arxiv.1908.04010 · pith_short_12: W2HQHOWGMYHG · pith_short_16: W2HQHOWGMYHGNP6V · pith_short_8: W2HQHOWG

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/W2HQHOWGMYHGNP6VJESZOLW5KW \
  | 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: b68f03bac6660e66bfd54925972edd55b7f6d01c0fadf2203dae8bb9361b3625

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "af237a32ff390c5a4d347789109d4e8ae6e0effae3182c81cf2f37afd5933d51",
    "cross_cats_sorted": [
      "cs.CE",
      "cs.NA",
      "cs.SY",
      "eess.SY",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-08-12T05:51:44Z",
    "title_canon_sha256": "8bbb92d7b20ed03a71527b4408199dfc2635821cad4b3c8d9b41e30cac2a2d21"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.04010",
    "kind": "arxiv",
    "version": 1
  }
}