Pith Number

pith:BHGWMYDJ

pith:2018:BHGWMYDJQECIV5OY6ZREL7ILOU

not attested not anchored not stored refs pending

A Bayesian Approach to Multivariate Adaptive Localization in Ensemble-Based Data Assimilation with Time-Dependent Extensions

Adrian Sandu, Andrey A Popov

arxiv:1809.08984 v1 · 2018-09-24 · cs.NA · cs.CE · 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{BHGWMYDJQECIV5OY6ZREL7ILOU}

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	2026-05-17T23:39:58.174250Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

09cd66606981048af5d8f66245fd0b752a30dc6e35a81f1da17b42dc102436df

Aliases

arxiv: 1809.08984 · arxiv_version: 1809.08984v1 · doi: 10.48550/arxiv.1809.08984 · pith_short_12: BHGWMYDJQECI · pith_short_16: BHGWMYDJQECIV5OY · pith_short_8: BHGWMYDJ

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/BHGWMYDJQECIV5OY6ZREL7ILOU \
  | 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: 09cd66606981048af5d8f66245fd0b752a30dc6e35a81f1da17b42dc102436df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a655ffd67ed8235718d68533365a041de4bb99a4e8a2bfa81928945da61120c8",
    "cross_cats_sorted": [
      "cs.CE",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NA",
    "submitted_at": "2018-09-24T15:04:24Z",
    "title_canon_sha256": "9af34ff6e2cd4b742037df9b113e64c3625eefb941a56b1a0b50ed969a4f345a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.08984",
    "kind": "arxiv",
    "version": 1
  }
}